Home / 990,868.01-1,367,352.08-561,151.20

Finding the Fourth Proportional to 990,868.01, 1,367,352.08 and 561,151.20

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Solution

The fourth proportional to 990,868.01, 1,367,352.08 and 561,151.20 is: 774,362.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,868.01 : 1,367,352.08 = 561,151.20 : x
  2. Step 2: Convert to fraction form
    990,868.01/1,367,352.08 = 561,151.20/x
  3. Step 3: Cross multiply
    990,868.01x = 1,367,352.08 × 561,151.20
  4. Step 4: Simplify right side
    990,868.01x = 767,291,257,708.74
  5. Step 5: Solve for x
    x = 767,291,257,708.74/990,868.01
  6. Step 6: Final answer
    x = 774,362.73

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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.