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Finding the Fourth Proportional to 423,909.10, 635,863.65 and 366,828.40

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Solution

The fourth proportional to 423,909.10, 635,863.65 and 366,828.40 is: 550,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,909.10 : 635,863.65 = 366,828.40 : x
  2. Step 2: Convert to fraction form
    423,909.10/635,863.65 = 366,828.40/x
  3. Step 3: Cross multiply
    423,909.10x = 635,863.65 × 366,828.40
  4. Step 4: Simplify right side
    423,909.10x = 233,252,845,347.66
  5. Step 5: Solve for x
    x = 233,252,845,347.66/423,909.10
  6. Step 6: Final answer
    x = 550,242.60

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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.