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Finding the Fourth Proportional to 639,325.71, 958,693.32 and 239,680.62

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Solution

The fourth proportional to 639,325.71, 958,693.32 and 239,680.62 is: 359,410.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,325.71 : 958,693.32 = 239,680.62 : x
  2. Step 2: Convert to fraction form
    639,325.71/958,693.32 = 239,680.62/x
  3. Step 3: Cross multiply
    639,325.71x = 958,693.32 × 239,680.62
  4. Step 4: Simplify right side
    639,325.71x = 229,780,209,327.46
  5. Step 5: Solve for x
    x = 229,780,209,327.46/639,325.71
  6. Step 6: Final answer
    x = 359,410.24

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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.