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Finding the Fourth Proportional to 472,044.16, 651,123.28 and 280,914.88

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Solution

The fourth proportional to 472,044.16, 651,123.28 and 280,914.88 is: 387,485.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,044.16 : 651,123.28 = 280,914.88 : x
  2. Step 2: Convert to fraction form
    472,044.16/651,123.28 = 280,914.88/x
  3. Step 3: Cross multiply
    472,044.16x = 651,123.28 × 280,914.88
  4. Step 4: Simplify right side
    472,044.16x = 182,910,218,066.41
  5. Step 5: Solve for x
    x = 182,910,218,066.41/472,044.16
  6. Step 6: Final answer
    x = 387,485.40

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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.