Home / 1,098,520.20-1,644,554.70-819,275.40

Finding the Fourth Proportional to 1,098,520.20, 1,644,554.70 and 819,275.40

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Solution

The fourth proportional to 1,098,520.20, 1,644,554.70 and 819,275.40 is: 1,226,507.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,520.20 : 1,644,554.70 = 819,275.40 : x
  2. Step 2: Convert to fraction form
    1,098,520.20/1,644,554.70 = 819,275.40/x
  3. Step 3: Cross multiply
    1,098,520.20x = 1,644,554.70 × 819,275.40
  4. Step 4: Simplify right side
    1,098,520.20x = 1,347,343,209,664.38
  5. Step 5: Solve for x
    x = 1,347,343,209,664.38/1,098,520.20
  6. Step 6: Final answer
    x = 1,226,507.45

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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.