Home / 987,865.38-1,363,254.15-535,156.38

Finding the Fourth Proportional to 987,865.38, 1,363,254.15 and 535,156.38

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Solution

The fourth proportional to 987,865.38, 1,363,254.15 and 535,156.38 is: 738,515.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,865.38 : 1,363,254.15 = 535,156.38 : x
  2. Step 2: Convert to fraction form
    987,865.38/1,363,254.15 = 535,156.38/x
  3. Step 3: Cross multiply
    987,865.38x = 1,363,254.15 × 535,156.38
  4. Step 4: Simplify right side
    987,865.38x = 729,554,155,933.98
  5. Step 5: Solve for x
    x = 729,554,155,933.98/987,865.38
  6. Step 6: Final answer
    x = 738,515.76

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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.