Home / 1,363,839.40-2,046,998.40-690,389.20

Finding the Fourth Proportional to 1,363,839.40, 2,046,998.40 and 690,389.20

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Solution

The fourth proportional to 1,363,839.40, 2,046,998.40 and 690,389.20 is: 1,036,211.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363,839.40 : 2,046,998.40 = 690,389.20 : x
  2. Step 2: Convert to fraction form
    1,363,839.40/2,046,998.40 = 690,389.20/x
  3. Step 3: Cross multiply
    1,363,839.40x = 2,046,998.40 × 690,389.20
  4. Step 4: Simplify right side
    1,363,839.40x = 1,413,225,587,777.28
  5. Step 5: Solve for x
    x = 1,413,225,587,777.28/1,363,839.40
  6. Step 6: Final answer
    x = 1,036,211.15

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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.