Home / 1,479,990.40-2,042,386.76-800,926.90

Finding the Fourth Proportional to 1,479,990.40, 2,042,386.76 and 800,926.90

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Solution

The fourth proportional to 1,479,990.40, 2,042,386.76 and 800,926.90 is: 1,105,279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479,990.40 : 2,042,386.76 = 800,926.90 : x
  2. Step 2: Convert to fraction form
    1,479,990.40/2,042,386.76 = 800,926.90/x
  3. Step 3: Cross multiply
    1,479,990.40x = 2,042,386.76 × 800,926.90
  4. Step 4: Simplify right side
    1,479,990.40x = 1,635,802,496,287.84
  5. Step 5: Solve for x
    x = 1,635,802,496,287.84/1,479,990.40
  6. Step 6: Final answer
    x = 1,105,279.13

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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.