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Finding the Fourth Proportional to 432,899.20, 649,348.80 and 432,899.20

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Solution

The fourth proportional to 432,899.20, 649,348.80 and 432,899.20 is: 649,348.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,899.20 : 649,348.80 = 432,899.20 : x
  2. Step 2: Convert to fraction form
    432,899.20/649,348.80 = 432,899.20/x
  3. Step 3: Cross multiply
    432,899.20x = 649,348.80 × 432,899.20
  4. Step 4: Simplify right side
    432,899.20x = 281,102,576,040.96
  5. Step 5: Solve for x
    x = 281,102,576,040.96/432,899.20
  6. Step 6: Final answer
    x = 649,348.80

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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.