Home / 687,947.80-1,031,873.10-238,559.80

Finding the Fourth Proportional to 687,947.80, 1,031,873.10 and 238,559.80

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Solution

The fourth proportional to 687,947.80, 1,031,873.10 and 238,559.80 is: 357,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,947.80 : 1,031,873.10 = 238,559.80 : x
  2. Step 2: Convert to fraction form
    687,947.80/1,031,873.10 = 238,559.80/x
  3. Step 3: Cross multiply
    687,947.80x = 1,031,873.10 × 238,559.80
  4. Step 4: Simplify right side
    687,947.80x = 246,163,440,361.38
  5. Step 5: Solve for x
    x = 246,163,440,361.38/687,947.80
  6. Step 6: Final answer
    x = 357,822.85

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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.