Home / 1,279,685.12-1,918,051.46-480,456.92

Finding the Fourth Proportional to 1,279,685.12, 1,918,051.46 and 480,456.92

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Solution

The fourth proportional to 1,279,685.12, 1,918,051.46 and 480,456.92 is: 720,131.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,685.12 : 1,918,051.46 = 480,456.92 : x
  2. Step 2: Convert to fraction form
    1,279,685.12/1,918,051.46 = 480,456.92/x
  3. Step 3: Cross multiply
    1,279,685.12x = 1,918,051.46 × 480,456.92
  4. Step 4: Simplify right side
    1,279,685.12x = 921,541,096,873.10
  5. Step 5: Solve for x
    x = 921,541,096,873.10/1,279,685.12
  6. Step 6: Final answer
    x = 720,131.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.