Home / 902,167.20-1,245,123.36-520,119.36

Finding the Fourth Proportional to 902,167.20, 1,245,123.36 and 520,119.36

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Solution

The fourth proportional to 902,167.20, 1,245,123.36 and 520,119.36 is: 717,841.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,167.20 : 1,245,123.36 = 520,119.36 : x
  2. Step 2: Convert to fraction form
    902,167.20/1,245,123.36 = 520,119.36/x
  3. Step 3: Cross multiply
    902,167.20x = 1,245,123.36 × 520,119.36
  4. Step 4: Simplify right side
    902,167.20x = 647,612,765,124.25
  5. Step 5: Solve for x
    x = 647,612,765,124.25/902,167.20
  6. Step 6: Final answer
    x = 717,841.18

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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.