Home / 987,939.72-1,363,358.16-535,230.72

Finding the Fourth Proportional to 987,939.72, 1,363,358.16 and 535,230.72

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Solution

The fourth proportional to 987,939.72, 1,363,358.16 and 535,230.72 is: 738,619.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,939.72 : 1,363,358.16 = 535,230.72 : x
  2. Step 2: Convert to fraction form
    987,939.72/1,363,358.16 = 535,230.72/x
  3. Step 3: Cross multiply
    987,939.72x = 1,363,358.16 × 535,230.72
  4. Step 4: Simplify right side
    987,939.72x = 729,711,169,594.68
  5. Step 5: Solve for x
    x = 729,711,169,594.68/987,939.72
  6. Step 6: Final answer
    x = 738,619.12

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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.