Home / 767,879.60-1,151,819.40-515,937.20

Finding the Fourth Proportional to 767,879.60, 1,151,819.40 and 515,937.20

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Solution

The fourth proportional to 767,879.60, 1,151,819.40 and 515,937.20 is: 773,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,879.60 : 1,151,819.40 = 515,937.20 : x
  2. Step 2: Convert to fraction form
    767,879.60/1,151,819.40 = 515,937.20/x
  3. Step 3: Cross multiply
    767,879.60x = 1,151,819.40 × 515,937.20
  4. Step 4: Simplify right side
    767,879.60x = 594,266,476,141.68
  5. Step 5: Solve for x
    x = 594,266,476,141.68/767,879.60
  6. Step 6: Final answer
    x = 773,905.80

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1.5x scale

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.