Home / 917,375.10-1,376,062.65-318,137.10

Finding the Fourth Proportional to 917,375.10, 1,376,062.65 and 318,137.10

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Solution

The fourth proportional to 917,375.10, 1,376,062.65 and 318,137.10 is: 477,205.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,375.10 : 1,376,062.65 = 318,137.10 : x
  2. Step 2: Convert to fraction form
    917,375.10/1,376,062.65 = 318,137.10/x
  3. Step 3: Cross multiply
    917,375.10x = 1,376,062.65 × 318,137.10
  4. Step 4: Simplify right side
    917,375.10x = 437,776,580,889.32
  5. Step 5: Solve for x
    x = 437,776,580,889.32/917,375.10
  6. Step 6: Final answer
    x = 477,205.65

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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.