Home / 738,721.90-1,108,082.85-265,422.70

Finding the Fourth Proportional to 738,721.90, 1,108,082.85 and 265,422.70

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Solution

The fourth proportional to 738,721.90, 1,108,082.85 and 265,422.70 is: 398,134.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,721.90 : 1,108,082.85 = 265,422.70 : x
  2. Step 2: Convert to fraction form
    738,721.90/1,108,082.85 = 265,422.70/x
  3. Step 3: Cross multiply
    738,721.90x = 1,108,082.85 × 265,422.70
  4. Step 4: Simplify right side
    738,721.90x = 294,110,341,870.70
  5. Step 5: Solve for x
    x = 294,110,341,870.70/738,721.90
  6. Step 6: Final answer
    x = 398,134.05

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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.