Home / 1,442,724.66-1,990,786.95-831,077.46

Finding the Fourth Proportional to 1,442,724.66, 1,990,786.95 and 831,077.46

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Solution

The fourth proportional to 1,442,724.66, 1,990,786.95 and 831,077.46 is: 1,146,787.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,724.66 : 1,990,786.95 = 831,077.46 : x
  2. Step 2: Convert to fraction form
    1,442,724.66/1,990,786.95 = 831,077.46/x
  3. Step 3: Cross multiply
    1,442,724.66x = 1,990,786.95 × 831,077.46
  4. Step 4: Simplify right side
    1,442,724.66x = 1,654,498,161,807.15
  5. Step 5: Solve for x
    x = 1,654,498,161,807.15/1,442,724.66
  6. Step 6: Final answer
    x = 1,146,787.19

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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.