Home / 1,424,331.13-1,965,764.07-812,343.61

Finding the Fourth Proportional to 1,424,331.13, 1,965,764.07 and 812,343.61

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Solution

The fourth proportional to 1,424,331.13, 1,965,764.07 and 812,343.61 is: 1,121,140.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,331.13 : 1,965,764.07 = 812,343.61 : x
  2. Step 2: Convert to fraction form
    1,424,331.13/1,965,764.07 = 812,343.61/x
  3. Step 3: Cross multiply
    1,424,331.13x = 1,965,764.07 × 812,343.61
  4. Step 4: Simplify right side
    1,424,331.13x = 1,596,875,881,032.09
  5. Step 5: Solve for x
    x = 1,596,875,881,032.09/1,424,331.13
  6. Step 6: Final answer
    x = 1,121,140.90

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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.