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Finding the Fourth Proportional to 615,990.30, 850,057.55 and 344,062.16

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Solution

The fourth proportional to 615,990.30, 850,057.55 and 344,062.16 is: 474,800.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,990.30 : 850,057.55 = 344,062.16 : x
  2. Step 2: Convert to fraction form
    615,990.30/850,057.55 = 344,062.16/x
  3. Step 3: Cross multiply
    615,990.30x = 850,057.55 × 344,062.16
  4. Step 4: Simplify right side
    615,990.30x = 292,472,630,806.71
  5. Step 5: Solve for x
    x = 292,472,630,806.71/615,990.30
  6. Step 6: Final answer
    x = 474,800.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.