Home / 840,145.92-1,159,366.40-458,165.76

Finding the Fourth Proportional to 840,145.92, 1,159,366.40 and 458,165.76

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Solution

The fourth proportional to 840,145.92, 1,159,366.40 and 458,165.76 is: 632,249.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,145.92 : 1,159,366.40 = 458,165.76 : x
  2. Step 2: Convert to fraction form
    840,145.92/1,159,366.40 = 458,165.76/x
  3. Step 3: Cross multiply
    840,145.92x = 1,159,366.40 × 458,165.76
  4. Step 4: Simplify right side
    840,145.92x = 531,181,987,774.46
  5. Step 5: Solve for x
    x = 531,181,987,774.46/840,145.92
  6. Step 6: Final answer
    x = 632,249.68

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.