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Finding the Fourth Proportional to 566,496.66, 781,589.30 and 321,440.88

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Solution

The fourth proportional to 566,496.66, 781,589.30 and 321,440.88 is: 443,488.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,496.66 : 781,589.30 = 321,440.88 : x
  2. Step 2: Convert to fraction form
    566,496.66/781,589.30 = 321,440.88/x
  3. Step 3: Cross multiply
    566,496.66x = 781,589.30 × 321,440.88
  4. Step 4: Simplify right side
    566,496.66x = 251,234,750,783.38
  5. Step 5: Solve for x
    x = 251,234,750,783.38/566,496.66
  6. Step 6: Final answer
    x = 443,488.49

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Double scale
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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.