Home / 687,601.53-1,031,613.47-328,230.98

Finding the Fourth Proportional to 687,601.53, 1,031,613.47 and 328,230.98

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Solution

The fourth proportional to 687,601.53, 1,031,613.47 and 328,230.98 is: 492,447.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,601.53 : 1,031,613.47 = 328,230.98 : x
  2. Step 2: Convert to fraction form
    687,601.53/1,031,613.47 = 328,230.98/x
  3. Step 3: Cross multiply
    687,601.53x = 1,031,613.47 × 328,230.98
  4. Step 4: Simplify right side
    687,601.53x = 338,607,493,440.08
  5. Step 5: Solve for x
    x = 338,607,493,440.08/687,601.53
  6. Step 6: Final answer
    x = 492,447.27

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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.