Home / 847,278.38-1,169,244.18-465,305.20

Finding the Fourth Proportional to 847,278.38, 1,169,244.18 and 465,305.20

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Solution

The fourth proportional to 847,278.38, 1,169,244.18 and 465,305.20 is: 642,121.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,278.38 : 1,169,244.18 = 465,305.20 : x
  2. Step 2: Convert to fraction form
    847,278.38/1,169,244.18 = 465,305.20/x
  3. Step 3: Cross multiply
    847,278.38x = 1,169,244.18 × 465,305.20
  4. Step 4: Simplify right side
    847,278.38x = 544,055,394,100.63
  5. Step 5: Solve for x
    x = 544,055,394,100.63/847,278.38
  6. Step 6: Final answer
    x = 642,121.18

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.