Home / 1,119,787.80-1,679,681.70-986,818.20

Finding the Fourth Proportional to 1,119,787.80, 1,679,681.70 and 986,818.20

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Solution

The fourth proportional to 1,119,787.80, 1,679,681.70 and 986,818.20 is: 1,480,227.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,787.80 : 1,679,681.70 = 986,818.20 : x
  2. Step 2: Convert to fraction form
    1,119,787.80/1,679,681.70 = 986,818.20/x
  3. Step 3: Cross multiply
    1,119,787.80x = 1,679,681.70 × 986,818.20
  4. Step 4: Simplify right side
    1,119,787.80x = 1,657,540,471,766.94
  5. Step 5: Solve for x
    x = 1,657,540,471,766.94/1,119,787.80
  6. Step 6: Final answer
    x = 1,480,227.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.