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Finding the Fourth Proportional to 615,531.20, 922,519.20 and 548,657.60

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Solution

The fourth proportional to 615,531.20, 922,519.20 and 548,657.60 is: 822,293.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,531.20 : 922,519.20 = 548,657.60 : x
  2. Step 2: Convert to fraction form
    615,531.20/922,519.20 = 548,657.60/x
  3. Step 3: Cross multiply
    615,531.20x = 922,519.20 × 548,657.60
  4. Step 4: Simplify right side
    615,531.20x = 506,147,170,225.92
  5. Step 5: Solve for x
    x = 506,147,170,225.92/615,531.20
  6. Step 6: Final answer
    x = 822,293.28

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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.