Home / 1,432,237.92-1,976,512.42-820,444.18

Finding the Fourth Proportional to 1,432,237.92, 1,976,512.42 and 820,444.18

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Solution

The fourth proportional to 1,432,237.92, 1,976,512.42 and 820,444.18 is: 1,132,226.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,237.92 : 1,976,512.42 = 820,444.18 : x
  2. Step 2: Convert to fraction form
    1,432,237.92/1,976,512.42 = 820,444.18/x
  3. Step 3: Cross multiply
    1,432,237.92x = 1,976,512.42 × 820,444.18
  4. Step 4: Simplify right side
    1,432,237.92x = 1,621,618,111,686.72
  5. Step 5: Solve for x
    x = 1,621,618,111,686.72/1,432,237.92
  6. Step 6: Final answer
    x = 1,132,226.77

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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.