Home / 1,391,566.20-2,087,349.30-831,694.20

Finding the Fourth Proportional to 1,391,566.20, 2,087,349.30 and 831,694.20

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Solution

The fourth proportional to 1,391,566.20, 2,087,349.30 and 831,694.20 is: 1,247,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,566.20 : 2,087,349.30 = 831,694.20 : x
  2. Step 2: Convert to fraction form
    1,391,566.20/2,087,349.30 = 831,694.20/x
  3. Step 3: Cross multiply
    1,391,566.20x = 2,087,349.30 × 831,694.20
  4. Step 4: Simplify right side
    1,391,566.20x = 1,736,036,306,184.06
  5. Step 5: Solve for x
    x = 1,736,036,306,184.06/1,391,566.20
  6. Step 6: Final answer
    x = 1,247,541.30

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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.