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Finding the Fourth Proportional to 584,915.60, 878,410.20 and 452,118.80

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Solution

The fourth proportional to 584,915.60, 878,410.20 and 452,118.80 is: 678,979.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,915.60 : 878,410.20 = 452,118.80 : x
  2. Step 2: Convert to fraction form
    584,915.60/878,410.20 = 452,118.80/x
  3. Step 3: Cross multiply
    584,915.60x = 878,410.20 × 452,118.80
  4. Step 4: Simplify right side
    584,915.60x = 397,145,765,531.76
  5. Step 5: Solve for x
    x = 397,145,765,531.76/584,915.60
  6. Step 6: Final answer
    x = 678,979.61

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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.