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Finding the Fourth Proportional to 432,801.72, 597,432.98 and 387,399.60

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Solution

The fourth proportional to 432,801.72, 597,432.98 and 387,399.60 is: 534,760.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,801.72 : 597,432.98 = 387,399.60 : x
  2. Step 2: Convert to fraction form
    432,801.72/597,432.98 = 387,399.60/x
  3. Step 3: Cross multiply
    432,801.72x = 597,432.98 × 387,399.60
  4. Step 4: Simplify right side
    432,801.72x = 231,445,297,478.81
  5. Step 5: Solve for x
    x = 231,445,297,478.81/432,801.72
  6. Step 6: Final answer
    x = 534,760.58

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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.