Home / 1,432,238.92-1,976,513.80-820,445.18

Finding the Fourth Proportional to 1,432,238.92, 1,976,513.80 and 820,445.18

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Solution

The fourth proportional to 1,432,238.92, 1,976,513.80 and 820,445.18 is: 1,132,228.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,238.92 : 1,976,513.80 = 820,445.18 : x
  2. Step 2: Convert to fraction form
    1,432,238.92/1,976,513.80 = 820,445.18/x
  3. Step 3: Cross multiply
    1,432,238.92x = 1,976,513.80 × 820,445.18
  4. Step 4: Simplify right side
    1,432,238.92x = 1,621,621,220,413.48
  5. Step 5: Solve for x
    x = 1,621,621,220,413.48/1,432,238.92
  6. Step 6: Final answer
    x = 1,132,228.15

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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.