Home / 756,072.80-1,132,359.60-518,127.20

Finding the Fourth Proportional to 756,072.80, 1,132,359.60 and 518,127.20

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Solution

The fourth proportional to 756,072.80, 1,132,359.60 and 518,127.20 is: 775,991.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,072.80 : 1,132,359.60 = 518,127.20 : x
  2. Step 2: Convert to fraction form
    756,072.80/1,132,359.60 = 518,127.20/x
  3. Step 3: Cross multiply
    756,072.80x = 1,132,359.60 × 518,127.20
  4. Step 4: Simplify right side
    756,072.80x = 586,706,308,941.12
  5. Step 5: Solve for x
    x = 586,706,308,941.12/756,072.80
  6. Step 6: Final answer
    x = 775,991.82

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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.