Home / 1,028,291.11-1,542,420.16-280,337.11

Finding the Fourth Proportional to 1,028,291.11, 1,542,420.16 and 280,337.11

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Solution

The fourth proportional to 1,028,291.11, 1,542,420.16 and 280,337.11 is: 420,501.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,291.11 : 1,542,420.16 = 280,337.11 : x
  2. Step 2: Convert to fraction form
    1,028,291.11/1,542,420.16 = 280,337.11/x
  3. Step 3: Cross multiply
    1,028,291.11x = 1,542,420.16 × 280,337.11
  4. Step 4: Simplify right side
    1,028,291.11x = 432,397,605,503.24
  5. Step 5: Solve for x
    x = 432,397,605,503.24/1,028,291.11
  6. Step 6: Final answer
    x = 420,501.16

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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.