Home / 987,974.46-1,363,404.47-535,265.46

Finding the Fourth Proportional to 987,974.46, 1,363,404.47 and 535,265.46

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Solution

The fourth proportional to 987,974.46, 1,363,404.47 and 535,265.46 is: 738,666.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,974.46 : 1,363,404.47 = 535,265.46 : x
  2. Step 2: Convert to fraction form
    987,974.46/1,363,404.47 = 535,265.46/x
  3. Step 3: Cross multiply
    987,974.46x = 1,363,404.47 × 535,265.46
  4. Step 4: Simplify right side
    987,974.46x = 729,783,318,124.28
  5. Step 5: Solve for x
    x = 729,783,318,124.28/987,974.46
  6. Step 6: Final answer
    x = 738,666.18

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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.