Home / 1,098,842.20-1,648,263.30-921,695.20

Finding the Fourth Proportional to 1,098,842.20, 1,648,263.30 and 921,695.20

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Solution

The fourth proportional to 1,098,842.20, 1,648,263.30 and 921,695.20 is: 1,382,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,842.20 : 1,648,263.30 = 921,695.20 : x
  2. Step 2: Convert to fraction form
    1,098,842.20/1,648,263.30 = 921,695.20/x
  3. Step 3: Cross multiply
    1,098,842.20x = 1,648,263.30 × 921,695.20
  4. Step 4: Simplify right side
    1,098,842.20x = 1,519,196,371,946.16
  5. Step 5: Solve for x
    x = 1,519,196,371,946.16/1,098,842.20
  6. Step 6: Final answer
    x = 1,382,542.80

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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.