Home / 910,418.40-1,365,627.60-311,399.10

Finding the Fourth Proportional to 910,418.40, 1,365,627.60 and 311,399.10

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Solution

The fourth proportional to 910,418.40, 1,365,627.60 and 311,399.10 is: 467,098.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,418.40 : 1,365,627.60 = 311,399.10 : x
  2. Step 2: Convert to fraction form
    910,418.40/1,365,627.60 = 311,399.10/x
  3. Step 3: Cross multiply
    910,418.40x = 1,365,627.60 × 311,399.10
  4. Step 4: Simplify right side
    910,418.40x = 425,255,205,575.16
  5. Step 5: Solve for x
    x = 425,255,205,575.16/910,418.40
  6. Step 6: Final answer
    x = 467,098.65

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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.