Home / 1,279,400.67-1,914,934.55-942,308.55

Finding the Fourth Proportional to 1,279,400.67, 1,914,934.55 and 942,308.55

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Solution

The fourth proportional to 1,279,400.67, 1,914,934.55 and 942,308.55 is: 1,410,394.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,400.67 : 1,914,934.55 = 942,308.55 : x
  2. Step 2: Convert to fraction form
    1,279,400.67/1,914,934.55 = 942,308.55/x
  3. Step 3: Cross multiply
    1,279,400.67x = 1,914,934.55 × 942,308.55
  4. Step 4: Simplify right side
    1,279,400.67x = 1,804,459,194,443.86
  5. Step 5: Solve for x
    x = 1,804,459,194,443.86/1,279,400.67
  6. Step 6: Final answer
    x = 1,410,394.13

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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.