Home / 1,098,557.70-1,647,836.55-921,410.70

Finding the Fourth Proportional to 1,098,557.70, 1,647,836.55 and 921,410.70

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Solution

The fourth proportional to 1,098,557.70, 1,647,836.55 and 921,410.70 is: 1,382,116.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,557.70 : 1,647,836.55 = 921,410.70 : x
  2. Step 2: Convert to fraction form
    1,098,557.70/1,647,836.55 = 921,410.70/x
  3. Step 3: Cross multiply
    1,098,557.70x = 1,647,836.55 × 921,410.70
  4. Step 4: Simplify right side
    1,098,557.70x = 1,518,334,229,021.09
  5. Step 5: Solve for x
    x = 1,518,334,229,021.09/1,098,557.70
  6. Step 6: Final answer
    x = 1,382,116.05

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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.