Home / 1,238,521.52-1,708,994.28-687,228.08

Finding the Fourth Proportional to 1,238,521.52, 1,708,994.28 and 687,228.08

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Solution

The fourth proportional to 1,238,521.52, 1,708,994.28 and 687,228.08 is: 948,282.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,521.52 : 1,708,994.28 = 687,228.08 : x
  2. Step 2: Convert to fraction form
    1,238,521.52/1,708,994.28 = 687,228.08/x
  3. Step 3: Cross multiply
    1,238,521.52x = 1,708,994.28 × 687,228.08
  4. Step 4: Simplify right side
    1,238,521.52x = 1,174,468,857,775.38
  5. Step 5: Solve for x
    x = 1,174,468,857,775.38/1,238,521.52
  6. Step 6: Final answer
    x = 948,282.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.