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Finding the Fourth Proportional to 673,545.72, 929,484.54 and 371,720.28

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Solution

The fourth proportional to 673,545.72, 929,484.54 and 371,720.28 is: 512,969.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,545.72 : 929,484.54 = 371,720.28 : x
  2. Step 2: Convert to fraction form
    673,545.72/929,484.54 = 371,720.28/x
  3. Step 3: Cross multiply
    673,545.72x = 929,484.54 × 371,720.28
  4. Step 4: Simplify right side
    673,545.72x = 345,508,253,464.47
  5. Step 5: Solve for x
    x = 345,508,253,464.47/673,545.72
  6. Step 6: Final answer
    x = 512,969.27

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Double scale
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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.