Home / 1,240,279.68-1,711,987.20-803,927.04

Finding the Fourth Proportional to 1,240,279.68, 1,711,987.20 and 803,927.04

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Solution

The fourth proportional to 1,240,279.68, 1,711,987.20 and 803,927.04 is: 1,109,679.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,279.68 : 1,711,987.20 = 803,927.04 : x
  2. Step 2: Convert to fraction form
    1,240,279.68/1,711,987.20 = 803,927.04/x
  3. Step 3: Cross multiply
    1,240,279.68x = 1,711,987.20 × 803,927.04
  4. Step 4: Simplify right side
    1,240,279.68x = 1,376,312,802,213.89
  5. Step 5: Solve for x
    x = 1,376,312,802,213.89/1,240,279.68
  6. Step 6: Final answer
    x = 1,109,679.39

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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.