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Finding the Fourth Proportional to 472,432.79, 651,950.97 and 257,572.46

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Solution

The fourth proportional to 472,432.79, 651,950.97 and 257,572.46 is: 355,446.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,432.79 : 651,950.97 = 257,572.46 : x
  2. Step 2: Convert to fraction form
    472,432.79/651,950.97 = 257,572.46/x
  3. Step 3: Cross multiply
    472,432.79x = 651,950.97 × 257,572.46
  4. Step 4: Simplify right side
    472,432.79x = 167,924,615,142.29
  5. Step 5: Solve for x
    x = 167,924,615,142.29/472,432.79
  6. Step 6: Final answer
    x = 355,446.57

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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.