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Finding the Fourth Proportional to 615,827.80, 924,432.90 and 476,205.40

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Solution

The fourth proportional to 615,827.80, 924,432.90 and 476,205.40 is: 714,842.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,827.80 : 924,432.90 = 476,205.40 : x
  2. Step 2: Convert to fraction form
    615,827.80/924,432.90 = 476,205.40/x
  3. Step 3: Cross multiply
    615,827.80x = 924,432.90 × 476,205.40
  4. Step 4: Simplify right side
    615,827.80x = 440,219,938,917.66
  5. Step 5: Solve for x
    x = 440,219,938,917.66/615,827.80
  6. Step 6: Final answer
    x = 714,842.59

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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.