Home / 927,987.04-1,280,712-520,158.16

Finding the Fourth Proportional to 927,987.04, 1,280,712 and 520,158.16

Calculator

Solution

The fourth proportional to 927,987.04, 1,280,712 and 520,158.16 is: 717,868.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,987.04 : 1,280,712 = 520,158.16 : x
  2. Step 2: Convert to fraction form
    927,987.04/1,280,712 = 520,158.16/x
  3. Step 3: Cross multiply
    927,987.04x = 1,280,712 × 520,158.16
  4. Step 4: Simplify right side
    927,987.04x = 666,172,797,409.92
  5. Step 5: Solve for x
    x = 666,172,797,409.92/927,987.04
  6. Step 6: Final answer
    x = 717,868.64

Related Problems

Find fourth proportional to 463,993.52, 640,356 and 260,079.08
Half scale
Find fourth proportional to 1,855,974.08, 2,561,424 and 1,040,316.32
Double scale
Find fourth proportional to 927,988.04, 1,280,713.38 and 520,159.16
Similar ratio
Find fourth proportional to 1,391,980.56, 1,921,068 and 780,237.24
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.