Home / 1,755,086.80-2,632,630.20-425,390.80

Finding the Fourth Proportional to 1,755,086.80, 2,632,630.20 and 425,390.80

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Solution

The fourth proportional to 1,755,086.80, 2,632,630.20 and 425,390.80 is: 638,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755,086.80 : 2,632,630.20 = 425,390.80 : x
  2. Step 2: Convert to fraction form
    1,755,086.80/2,632,630.20 = 425,390.80/x
  3. Step 3: Cross multiply
    1,755,086.80x = 2,632,630.20 × 425,390.80
  4. Step 4: Simplify right side
    1,755,086.80x = 1,119,896,666,882.16
  5. Step 5: Solve for x
    x = 1,119,896,666,882.16/1,755,086.80
  6. Step 6: Final answer
    x = 638,086.20

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Double scale
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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.