Home / 820,177.80-1,230,266.70-757,192.20

Finding the Fourth Proportional to 820,177.80, 1,230,266.70 and 757,192.20

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Solution

The fourth proportional to 820,177.80, 1,230,266.70 and 757,192.20 is: 1,135,788.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,177.80 : 1,230,266.70 = 757,192.20 : x
  2. Step 2: Convert to fraction form
    820,177.80/1,230,266.70 = 757,192.20/x
  3. Step 3: Cross multiply
    820,177.80x = 1,230,266.70 × 757,192.20
  4. Step 4: Simplify right side
    820,177.80x = 931,548,349,159.74
  5. Step 5: Solve for x
    x = 931,548,349,159.74/820,177.80
  6. Step 6: Final answer
    x = 1,135,788.30

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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.