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Finding the Fourth Proportional to 423,921.60, 635,882.40 and 366,840.90

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Solution

The fourth proportional to 423,921.60, 635,882.40 and 366,840.90 is: 550,261.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,921.60 : 635,882.40 = 366,840.90 : x
  2. Step 2: Convert to fraction form
    423,921.60/635,882.40 = 366,840.90/x
  3. Step 3: Cross multiply
    423,921.60x = 635,882.40 × 366,840.90
  4. Step 4: Simplify right side
    423,921.60x = 233,267,671,910.16
  5. Step 5: Solve for x
    x = 233,267,671,910.16/423,921.60
  6. Step 6: Final answer
    x = 550,261.35

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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.