Home / 659,918.90-991,081.20-577,250.30

Finding the Fourth Proportional to 659,918.90, 991,081.20 and 577,250.30

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Solution

The fourth proportional to 659,918.90, 991,081.20 and 577,250.30 is: 866,927.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,918.90 : 991,081.20 = 577,250.30 : x
  2. Step 2: Convert to fraction form
    659,918.90/991,081.20 = 577,250.30/x
  3. Step 3: Cross multiply
    659,918.90x = 991,081.20 × 577,250.30
  4. Step 4: Simplify right side
    659,918.90x = 572,101,920,024.36
  5. Step 5: Solve for x
    x = 572,101,920,024.36/659,918.90
  6. Step 6: Final answer
    x = 866,927.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.