Home / 687,839.94-1,031,060.07-636,926.58

Finding the Fourth Proportional to 687,839.94, 1,031,060.07 and 636,926.58

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Solution

The fourth proportional to 687,839.94, 1,031,060.07 and 636,926.58 is: 954,741.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,839.94 : 1,031,060.07 = 636,926.58 : x
  2. Step 2: Convert to fraction form
    687,839.94/1,031,060.07 = 636,926.58/x
  3. Step 3: Cross multiply
    687,839.94x = 1,031,060.07 × 636,926.58
  4. Step 4: Simplify right side
    687,839.94x = 656,709,564,159.66
  5. Step 5: Solve for x
    x = 656,709,564,159.66/687,839.94
  6. Step 6: Final answer
    x = 954,741.83

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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.