Home / 1,195,138.32-1,648,565.64-711,380.40

Finding the Fourth Proportional to 1,195,138.32, 1,648,565.64 and 711,380.40

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Solution

The fourth proportional to 1,195,138.32, 1,648,565.64 and 711,380.40 is: 981,273.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195,138.32 : 1,648,565.64 = 711,380.40 : x
  2. Step 2: Convert to fraction form
    1,195,138.32/1,648,565.64 = 711,380.40/x
  3. Step 3: Cross multiply
    1,195,138.32x = 1,648,565.64 × 711,380.40
  4. Step 4: Simplify right side
    1,195,138.32x = 1,172,757,284,409.46
  5. Step 5: Solve for x
    x = 1,172,757,284,409.46/1,195,138.32
  6. Step 6: Final answer
    x = 981,273.27

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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.