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Finding the Fourth Proportional to 448,520.73, 672,781.10 and 307,852.89

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Solution

The fourth proportional to 448,520.73, 672,781.10 and 307,852.89 is: 461,779.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,520.73 : 672,781.10 = 307,852.89 : x
  2. Step 2: Convert to fraction form
    448,520.73/672,781.10 = 307,852.89/x
  3. Step 3: Cross multiply
    448,520.73x = 672,781.10 × 307,852.89
  4. Step 4: Simplify right side
    448,520.73x = 207,117,605,972.38
  5. Step 5: Solve for x
    x = 207,117,605,972.38/448,520.73
  6. Step 6: Final answer
    x = 461,779.34

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.