Home / 687,991.73-1,031,208.98-350,319.06

Finding the Fourth Proportional to 687,991.73, 1,031,208.98 and 350,319.06

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Solution

The fourth proportional to 687,991.73, 1,031,208.98 and 350,319.06 is: 525,082.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,991.73 : 1,031,208.98 = 350,319.06 : x
  2. Step 2: Convert to fraction form
    687,991.73/1,031,208.98 = 350,319.06/x
  3. Step 3: Cross multiply
    687,991.73x = 1,031,208.98 × 350,319.06
  4. Step 4: Simplify right side
    687,991.73x = 361,252,158,785.56
  5. Step 5: Solve for x
    x = 361,252,158,785.56/687,991.73
  6. Step 6: Final answer
    x = 525,082.13

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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.