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Finding the Fourth Proportional to 457,484.79, 631,319.92 and 253,531.48

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Solution

The fourth proportional to 457,484.79, 631,319.92 and 253,531.48 is: 349,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,484.79 : 631,319.92 = 253,531.48 : x
  2. Step 2: Convert to fraction form
    457,484.79/631,319.92 = 253,531.48/x
  3. Step 3: Cross multiply
    457,484.79x = 631,319.92 × 253,531.48
  4. Step 4: Simplify right side
    457,484.79x = 160,059,473,671.08
  5. Step 5: Solve for x
    x = 160,059,473,671.08/457,484.79
  6. Step 6: Final answer
    x = 349,868.40

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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.