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Finding the Fourth Proportional to 615,348.20, 922,244.70 and 299,124.20

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Solution

The fourth proportional to 615,348.20, 922,244.70 and 299,124.20 is: 448,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,348.20 : 922,244.70 = 299,124.20 : x
  2. Step 2: Convert to fraction form
    615,348.20/922,244.70 = 299,124.20/x
  3. Step 3: Cross multiply
    615,348.20x = 922,244.70 × 299,124.20
  4. Step 4: Simplify right side
    615,348.20x = 275,865,708,091.74
  5. Step 5: Solve for x
    x = 275,865,708,091.74/615,348.20
  6. Step 6: Final answer
    x = 448,308.30

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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.