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Finding the Fourth Proportional to 610,440.40, 915,660.60 and 451,008.10

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Solution

The fourth proportional to 610,440.40, 915,660.60 and 451,008.10 is: 676,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,440.40 : 915,660.60 = 451,008.10 : x
  2. Step 2: Convert to fraction form
    610,440.40/915,660.60 = 451,008.10/x
  3. Step 3: Cross multiply
    610,440.40x = 915,660.60 × 451,008.10
  4. Step 4: Simplify right side
    610,440.40x = 412,970,347,450.86
  5. Step 5: Solve for x
    x = 412,970,347,450.86/610,440.40
  6. Step 6: Final answer
    x = 676,512.15

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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.