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Finding the Fourth Proportional to 972,337.80, 1,458,497.10 and 307,489.80

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Solution

The fourth proportional to 972,337.80, 1,458,497.10 and 307,489.80 is: 461,231.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,337.80 : 1,458,497.10 = 307,489.80 : x
  2. Step 2: Convert to fraction form
    972,337.80/1,458,497.10 = 307,489.80/x
  3. Step 3: Cross multiply
    972,337.80x = 1,458,497.10 × 307,489.80
  4. Step 4: Simplify right side
    972,337.80x = 448,472,981,579.58
  5. Step 5: Solve for x
    x = 448,472,981,579.58/972,337.80
  6. Step 6: Final answer
    x = 461,231.66

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Double scale
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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.