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Finding the Fourth Proportional to 532,783.20, 735,255.24 and 318,047.89

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Solution

The fourth proportional to 532,783.20, 735,255.24 and 318,047.89 is: 438,914.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,783.20 : 735,255.24 = 318,047.89 : x
  2. Step 2: Convert to fraction form
    532,783.20/735,255.24 = 318,047.89/x
  3. Step 3: Cross multiply
    532,783.20x = 735,255.24 × 318,047.89
  4. Step 4: Simplify right side
    532,783.20x = 233,846,377,693.44
  5. Step 5: Solve for x
    x = 233,846,377,693.44/532,783.20
  6. Step 6: Final answer
    x = 438,914.70

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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.