Home / 711,428.07-1,067,156-261,917.55

Finding the Fourth Proportional to 711,428.07, 1,067,156 and 261,917.55

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Solution

The fourth proportional to 711,428.07, 1,067,156 and 261,917.55 is: 392,881.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,428.07 : 1,067,156 = 261,917.55 : x
  2. Step 2: Convert to fraction form
    711,428.07/1,067,156 = 261,917.55/x
  3. Step 3: Cross multiply
    711,428.07x = 1,067,156 × 261,917.55
  4. Step 4: Simplify right side
    711,428.07x = 279,506,884,987.80
  5. Step 5: Solve for x
    x = 279,506,884,987.80/711,428.07
  6. Step 6: Final answer
    x = 392,881.44

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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.