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Finding the Fourth Proportional to 432,839.70, 649,259.55 and 262,335.71

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Solution

The fourth proportional to 432,839.70, 649,259.55 and 262,335.71 is: 393,503.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,839.70 : 649,259.55 = 262,335.71 : x
  2. Step 2: Convert to fraction form
    432,839.70/649,259.55 = 262,335.71/x
  3. Step 3: Cross multiply
    432,839.70x = 649,259.55 × 262,335.71
  4. Step 4: Simplify right side
    432,839.70x = 170,323,966,646.68
  5. Step 5: Solve for x
    x = 170,323,966,646.68/432,839.70
  6. Step 6: Final answer
    x = 393,503.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.