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Finding the Fourth Proportional to 432,002.60, 648,003.90 and 243,045.80

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Solution

The fourth proportional to 432,002.60, 648,003.90 and 243,045.80 is: 364,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,002.60 : 648,003.90 = 243,045.80 : x
  2. Step 2: Convert to fraction form
    432,002.60/648,003.90 = 243,045.80/x
  3. Step 3: Cross multiply
    432,002.60x = 648,003.90 × 243,045.80
  4. Step 4: Simplify right side
    432,002.60x = 157,494,626,278.62
  5. Step 5: Solve for x
    x = 157,494,626,278.62/432,002.60
  6. Step 6: Final answer
    x = 364,568.70

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Similar ratio
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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.