Home / 1,457,242.92-2,010,991.32-812,663.82

Finding the Fourth Proportional to 1,457,242.92, 2,010,991.32 and 812,663.82

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Solution

The fourth proportional to 1,457,242.92, 2,010,991.32 and 812,663.82 is: 1,121,473.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,242.92 : 2,010,991.32 = 812,663.82 : x
  2. Step 2: Convert to fraction form
    1,457,242.92/2,010,991.32 = 812,663.82/x
  3. Step 3: Cross multiply
    1,457,242.92x = 2,010,991.32 × 812,663.82
  4. Step 4: Simplify right side
    1,457,242.92x = 1,634,259,888,098.04
  5. Step 5: Solve for x
    x = 1,634,259,888,098.04/1,457,242.92
  6. Step 6: Final answer
    x = 1,121,473.89

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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.