Home / 1,359,876.39-2,034,783.27-820,445.55

Finding the Fourth Proportional to 1,359,876.39, 2,034,783.27 and 820,445.55

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Solution

The fourth proportional to 1,359,876.39, 2,034,783.27 and 820,445.55 is: 1,227,632.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,876.39 : 2,034,783.27 = 820,445.55 : x
  2. Step 2: Convert to fraction form
    1,359,876.39/2,034,783.27 = 820,445.55/x
  3. Step 3: Cross multiply
    1,359,876.39x = 2,034,783.27 × 820,445.55
  4. Step 4: Simplify right side
    1,359,876.39x = 1,669,428,879,085.95
  5. Step 5: Solve for x
    x = 1,669,428,879,085.95/1,359,876.39
  6. Step 6: Final answer
    x = 1,227,632.81

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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.