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Finding the Fourth Proportional to 609,974.40, 914,961.60 and 452,510.40

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Solution

The fourth proportional to 609,974.40, 914,961.60 and 452,510.40 is: 678,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,974.40 : 914,961.60 = 452,510.40 : x
  2. Step 2: Convert to fraction form
    609,974.40/914,961.60 = 452,510.40/x
  3. Step 3: Cross multiply
    609,974.40x = 914,961.60 × 452,510.40
  4. Step 4: Simplify right side
    609,974.40x = 414,029,639,600.64
  5. Step 5: Solve for x
    x = 414,029,639,600.64/609,974.40
  6. Step 6: Final answer
    x = 678,765.60

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Double scale
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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.