Home / 1,457,572.92-2,011,445.37-812,992.61

Finding the Fourth Proportional to 1,457,572.92, 2,011,445.37 and 812,992.61

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Solution

The fourth proportional to 1,457,572.92, 2,011,445.37 and 812,992.61 is: 1,121,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,572.92 : 2,011,445.37 = 812,992.61 : x
  2. Step 2: Convert to fraction form
    1,457,572.92/2,011,445.37 = 812,992.61/x
  3. Step 3: Cross multiply
    1,457,572.92x = 2,011,445.37 × 812,992.61
  4. Step 4: Simplify right side
    1,457,572.92x = 1,635,290,211,171.49
  5. Step 5: Solve for x
    x = 1,635,290,211,171.49/1,457,572.92
  6. Step 6: Final answer
    x = 1,121,926.86

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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.