Home / 767,880.20-1,151,820.30-515,937.80

Finding the Fourth Proportional to 767,880.20, 1,151,820.30 and 515,937.80

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Solution

The fourth proportional to 767,880.20, 1,151,820.30 and 515,937.80 is: 773,906.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,880.20 : 1,151,820.30 = 515,937.80 : x
  2. Step 2: Convert to fraction form
    767,880.20/1,151,820.30 = 515,937.80/x
  3. Step 3: Cross multiply
    767,880.20x = 1,151,820.30 × 515,937.80
  4. Step 4: Simplify right side
    767,880.20x = 594,267,631,577.34
  5. Step 5: Solve for x
    x = 594,267,631,577.34/767,880.20
  6. Step 6: Final answer
    x = 773,906.70

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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.