Home / 917,072.20-1,375,608.30-668,240.20

Finding the Fourth Proportional to 917,072.20, 1,375,608.30 and 668,240.20

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Solution

The fourth proportional to 917,072.20, 1,375,608.30 and 668,240.20 is: 1,002,360.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,072.20 : 1,375,608.30 = 668,240.20 : x
  2. Step 2: Convert to fraction form
    917,072.20/1,375,608.30 = 668,240.20/x
  3. Step 3: Cross multiply
    917,072.20x = 1,375,608.30 × 668,240.20
  4. Step 4: Simplify right side
    917,072.20x = 919,236,765,513.66
  5. Step 5: Solve for x
    x = 919,236,765,513.66/917,072.20
  6. Step 6: Final answer
    x = 1,002,360.30

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Double scale
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Similar ratio
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1.5x scale

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.