Home / 767,878.20-1,151,817.30-515,935.80

Finding the Fourth Proportional to 767,878.20, 1,151,817.30 and 515,935.80

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Solution

The fourth proportional to 767,878.20, 1,151,817.30 and 515,935.80 is: 773,903.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,878.20 : 1,151,817.30 = 515,935.80 : x
  2. Step 2: Convert to fraction form
    767,878.20/1,151,817.30 = 515,935.80/x
  3. Step 3: Cross multiply
    767,878.20x = 1,151,817.30 × 515,935.80
  4. Step 4: Simplify right side
    767,878.20x = 594,263,780,129.34
  5. Step 5: Solve for x
    x = 594,263,780,129.34/767,878.20
  6. Step 6: Final answer
    x = 773,903.70

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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.