Home / 816,787.79-1,127,001.98-477,190.43

Finding the Fourth Proportional to 816,787.79, 1,127,001.98 and 477,190.43

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Solution

The fourth proportional to 816,787.79, 1,127,001.98 and 477,190.43 is: 658,426.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,787.79 : 1,127,001.98 = 477,190.43 : x
  2. Step 2: Convert to fraction form
    816,787.79/1,127,001.98 = 477,190.43/x
  3. Step 3: Cross multiply
    816,787.79x = 1,127,001.98 × 477,190.43
  4. Step 4: Simplify right side
    816,787.79x = 537,794,557,061.10
  5. Step 5: Solve for x
    x = 537,794,557,061.10/816,787.79
  6. Step 6: Final answer
    x = 658,426.29

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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.