Home / 495,905.40-743,858.10-474,910.20

Finding the Fourth Proportional to 495,905.40, 743,858.10 and 474,910.20

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Solution

The fourth proportional to 495,905.40, 743,858.10 and 474,910.20 is: 712,365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,905.40 : 743,858.10 = 474,910.20 : x
  2. Step 2: Convert to fraction form
    495,905.40/743,858.10 = 474,910.20/x
  3. Step 3: Cross multiply
    495,905.40x = 743,858.10 × 474,910.20
  4. Step 4: Simplify right side
    495,905.40x = 353,265,799,042.62
  5. Step 5: Solve for x
    x = 353,265,799,042.62/495,905.40
  6. Step 6: Final answer
    x = 712,365.30

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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.