Home / 687,598.53-1,031,608.96-328,227.96

Finding the Fourth Proportional to 687,598.53, 1,031,608.96 and 328,227.96

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Solution

The fourth proportional to 687,598.53, 1,031,608.96 and 328,227.96 is: 492,442.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,598.53 : 1,031,608.96 = 328,227.96 : x
  2. Step 2: Convert to fraction form
    687,598.53/1,031,608.96 = 328,227.96/x
  3. Step 3: Cross multiply
    687,598.53x = 1,031,608.96 × 328,227.96
  4. Step 4: Simplify right side
    687,598.53x = 338,602,903,637.95
  5. Step 5: Solve for x
    x = 338,602,903,637.95/687,598.53
  6. Step 6: Final answer
    x = 492,442.74

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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.