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Finding the Fourth Proportional to 478,287.48, 660,037.50 and 263,427.96

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Solution

The fourth proportional to 478,287.48, 660,037.50 and 263,427.96 is: 363,531.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,287.48 : 660,037.50 = 263,427.96 : x
  2. Step 2: Convert to fraction form
    478,287.48/660,037.50 = 263,427.96/x
  3. Step 3: Cross multiply
    478,287.48x = 660,037.50 × 263,427.96
  4. Step 4: Simplify right side
    478,287.48x = 173,872,332,148.50
  5. Step 5: Solve for x
    x = 173,872,332,148.50/478,287.48
  6. Step 6: Final answer
    x = 363,531.01

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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.