Home / 987,930.32-1,363,345.23-535,221.32

Finding the Fourth Proportional to 987,930.32, 1,363,345.23 and 535,221.32

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Solution

The fourth proportional to 987,930.32, 1,363,345.23 and 535,221.32 is: 738,606.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,930.32 : 1,363,345.23 = 535,221.32 : x
  2. Step 2: Convert to fraction form
    987,930.32/1,363,345.23 = 535,221.32/x
  3. Step 3: Cross multiply
    987,930.32x = 1,363,345.23 × 535,221.32
  4. Step 4: Simplify right side
    987,930.32x = 729,691,433,616.30
  5. Step 5: Solve for x
    x = 729,691,433,616.30/987,930.32
  6. Step 6: Final answer
    x = 738,606.17

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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.