Home / 1,432,228.32-1,976,429.79-787,646.52

Finding the Fourth Proportional to 1,432,228.32, 1,976,429.79 and 787,646.52

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Solution

The fourth proportional to 1,432,228.32, 1,976,429.79 and 787,646.52 is: 1,086,927.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,228.32 : 1,976,429.79 = 787,646.52 : x
  2. Step 2: Convert to fraction form
    1,432,228.32/1,976,429.79 = 787,646.52/x
  3. Step 3: Cross multiply
    1,432,228.32x = 1,976,429.79 × 787,646.52
  4. Step 4: Simplify right side
    1,432,228.32x = 1,556,728,046,117.83
  5. Step 5: Solve for x
    x = 1,556,728,046,117.83/1,432,228.32
  6. Step 6: Final answer
    x = 1,086,927.29

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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.