Home / 1,175,029-1,621,549.74-638,485

Finding the Fourth Proportional to 1,175,029, 1,621,549.74 and 638,485

Calculator

Solution

The fourth proportional to 1,175,029, 1,621,549.74 and 638,485 is: 881,114.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,029 : 1,621,549.74 = 638,485 : x
  2. Step 2: Convert to fraction form
    1,175,029/1,621,549.74 = 638,485/x
  3. Step 3: Cross multiply
    1,175,029x = 1,621,549.74 × 638,485
  4. Step 4: Simplify right side
    1,175,029x = 1,035,335,185,743.90
  5. Step 5: Solve for x
    x = 1,035,335,185,743.90/1,175,029
  6. Step 6: Final answer
    x = 881,114.58

Related Problems

Find fourth proportional to 587,514.50, 810,774.87 and 319,242.50
Half scale
Find fourth proportional to 2,350,058, 3,243,099.48 and 1,276,970
Double scale
Find fourth proportional to 1,175,030, 1,621,551.12 and 638,486
Similar ratio
Find fourth proportional to 1,762,543.50, 2,432,324.61 and 957,727.50
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.