Home / 1,279,958.90-1,920,073.28-426,733.14

Finding the Fourth Proportional to 1,279,958.90, 1,920,073.28 and 426,733.14

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Solution

The fourth proportional to 1,279,958.90, 1,920,073.28 and 426,733.14 is: 640,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,958.90 : 1,920,073.28 = 426,733.14 : x
  2. Step 2: Convert to fraction form
    1,279,958.90/1,920,073.28 = 426,733.14/x
  3. Step 3: Cross multiply
    1,279,958.90x = 1,920,073.28 × 426,733.14
  4. Step 4: Simplify right side
    1,279,958.90x = 819,358,897,670.83
  5. Step 5: Solve for x
    x = 819,358,897,670.83/1,279,958.90
  6. Step 6: Final answer
    x = 640,144.70

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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.