Home / 814,711.12-1,221,775.08-282,089.20

Finding the Fourth Proportional to 814,711.12, 1,221,775.08 and 282,089.20

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Solution

The fourth proportional to 814,711.12, 1,221,775.08 and 282,089.20 is: 423,032.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,711.12 : 1,221,775.08 = 282,089.20 : x
  2. Step 2: Convert to fraction form
    814,711.12/1,221,775.08 = 282,089.20/x
  3. Step 3: Cross multiply
    814,711.12x = 1,221,775.08 × 282,089.20
  4. Step 4: Simplify right side
    814,711.12x = 344,649,554,897.14
  5. Step 5: Solve for x
    x = 344,649,554,897.14/814,711.12
  6. Step 6: Final answer
    x = 423,032.84

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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.