Home / 687,633.13-1,031,216.08-238,249.10

Finding the Fourth Proportional to 687,633.13, 1,031,216.08 and 238,249.10

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Solution

The fourth proportional to 687,633.13, 1,031,216.08 and 238,249.10 is: 357,292.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,633.13 : 1,031,216.08 = 238,249.10 : x
  2. Step 2: Convert to fraction form
    687,633.13/1,031,216.08 = 238,249.10/x
  3. Step 3: Cross multiply
    687,633.13x = 1,031,216.08 × 238,249.10
  4. Step 4: Simplify right side
    687,633.13x = 245,686,301,774.28
  5. Step 5: Solve for x
    x = 245,686,301,774.28/687,633.13
  6. Step 6: Final answer
    x = 357,292.71

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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.