Home / 687,519.60-1,031,032.32-238,119.36

Finding the Fourth Proportional to 687,519.60, 1,031,032.32 and 238,119.36

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Solution

The fourth proportional to 687,519.60, 1,031,032.32 and 238,119.36 is: 357,093.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,519.60 : 1,031,032.32 = 238,119.36 : x
  2. Step 2: Convert to fraction form
    687,519.60/1,031,032.32 = 238,119.36/x
  3. Step 3: Cross multiply
    687,519.60x = 1,031,032.32 × 238,119.36
  4. Step 4: Simplify right side
    687,519.60x = 245,508,756,177.72
  5. Step 5: Solve for x
    x = 245,508,756,177.72/687,519.60
  6. Step 6: Final answer
    x = 357,093.46

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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.