Home / 1,278,275.42-1,917,085.10-379,508.64

Finding the Fourth Proportional to 1,278,275.42, 1,917,085.10 and 379,508.64

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Solution

The fourth proportional to 1,278,275.42, 1,917,085.10 and 379,508.64 is: 569,165.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,275.42 : 1,917,085.10 = 379,508.64 : x
  2. Step 2: Convert to fraction form
    1,278,275.42/1,917,085.10 = 379,508.64/x
  3. Step 3: Cross multiply
    1,278,275.42x = 1,917,085.10 × 379,508.64
  4. Step 4: Simplify right side
    1,278,275.42x = 727,550,359,065.26
  5. Step 5: Solve for x
    x = 727,550,359,065.26/1,278,275.42
  6. Step 6: Final answer
    x = 569,165.57

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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.