Home / 1,279,673.60-1,920,172.80-522,070.40

Finding the Fourth Proportional to 1,279,673.60, 1,920,172.80 and 522,070.40

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Solution

The fourth proportional to 1,279,673.60, 1,920,172.80 and 522,070.40 is: 783,375.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,673.60 : 1,920,172.80 = 522,070.40 : x
  2. Step 2: Convert to fraction form
    1,279,673.60/1,920,172.80 = 522,070.40/x
  3. Step 3: Cross multiply
    1,279,673.60x = 1,920,172.80 × 522,070.40
  4. Step 4: Simplify right side
    1,279,673.60x = 1,002,465,381,765.12
  5. Step 5: Solve for x
    x = 1,002,465,381,765.12/1,279,673.60
  6. Step 6: Final answer
    x = 783,375.84

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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.