Home / 767,875.20-1,151,812.80-515,932.80

Finding the Fourth Proportional to 767,875.20, 1,151,812.80 and 515,932.80

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Solution

The fourth proportional to 767,875.20, 1,151,812.80 and 515,932.80 is: 773,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,875.20 : 1,151,812.80 = 515,932.80 : x
  2. Step 2: Convert to fraction form
    767,875.20/1,151,812.80 = 515,932.80/x
  3. Step 3: Cross multiply
    767,875.20x = 1,151,812.80 × 515,932.80
  4. Step 4: Simplify right side
    767,875.20x = 594,258,002,979.84
  5. Step 5: Solve for x
    x = 594,258,002,979.84/767,875.20
  6. Step 6: Final answer
    x = 773,899.20

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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.