Home / 770,809.20-1,154,658.60-518,866.80

Finding the Fourth Proportional to 770,809.20, 1,154,658.60 and 518,866.80

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Solution

The fourth proportional to 770,809.20, 1,154,658.60 and 518,866.80 is: 777,253.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,809.20 : 1,154,658.60 = 518,866.80 : x
  2. Step 2: Convert to fraction form
    770,809.20/1,154,658.60 = 518,866.80/x
  3. Step 3: Cross multiply
    770,809.20x = 1,154,658.60 × 518,866.80
  4. Step 4: Simplify right side
    770,809.20x = 599,114,012,874.48
  5. Step 5: Solve for x
    x = 599,114,012,874.48/770,809.20
  6. Step 6: Final answer
    x = 777,253.32

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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.