Home / 987,929.82-1,363,344.53-535,220.82

Finding the Fourth Proportional to 987,929.82, 1,363,344.53 and 535,220.82

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Solution

The fourth proportional to 987,929.82, 1,363,344.53 and 535,220.82 is: 738,605.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,929.82 : 1,363,344.53 = 535,220.82 : x
  2. Step 2: Convert to fraction form
    987,929.82/1,363,344.53 = 535,220.82/x
  3. Step 3: Cross multiply
    987,929.82x = 1,363,344.53 × 535,220.82
  4. Step 4: Simplify right side
    987,929.82x = 729,690,377,289.12
  5. Step 5: Solve for x
    x = 729,690,377,289.12/987,929.82
  6. Step 6: Final answer
    x = 738,605.48

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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.