Home / 1,108,883.70-1,663,325.55-398,934.90

Finding the Fourth Proportional to 1,108,883.70, 1,663,325.55 and 398,934.90

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Solution

The fourth proportional to 1,108,883.70, 1,663,325.55 and 398,934.90 is: 598,402.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,883.70 : 1,663,325.55 = 398,934.90 : x
  2. Step 2: Convert to fraction form
    1,108,883.70/1,663,325.55 = 398,934.90/x
  3. Step 3: Cross multiply
    1,108,883.70x = 1,663,325.55 × 398,934.90
  4. Step 4: Simplify right side
    1,108,883.70x = 663,558,611,956.70
  5. Step 5: Solve for x
    x = 663,558,611,956.70/1,108,883.70
  6. Step 6: Final answer
    x = 598,402.35

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Double scale
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Similar ratio
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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.