Home / 460,044.20-690,066.30-127,620.20

Finding the Fourth Proportional to 460,044.20, 690,066.30 and 127,620.20

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Solution

The fourth proportional to 460,044.20, 690,066.30 and 127,620.20 is: 191,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,044.20 : 690,066.30 = 127,620.20 : x
  2. Step 2: Convert to fraction form
    460,044.20/690,066.30 = 127,620.20/x
  3. Step 3: Cross multiply
    460,044.20x = 690,066.30 × 127,620.20
  4. Step 4: Simplify right side
    460,044.20x = 88,066,399,219.26
  5. Step 5: Solve for x
    x = 88,066,399,219.26/460,044.20
  6. Step 6: Final answer
    x = 191,430.30

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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.