Home / 1,320,937.50-1,980,781.66-511,700.95

Finding the Fourth Proportional to 1,320,937.50, 1,980,781.66 and 511,700.95

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Solution

The fourth proportional to 1,320,937.50, 1,980,781.66 and 511,700.95 is: 767,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,937.50 : 1,980,781.66 = 511,700.95 : x
  2. Step 2: Convert to fraction form
    1,320,937.50/1,980,781.66 = 511,700.95/x
  3. Step 3: Cross multiply
    1,320,937.50x = 1,980,781.66 × 511,700.95
  4. Step 4: Simplify right side
    1,320,937.50x = 1,013,567,846,979.57
  5. Step 5: Solve for x
    x = 1,013,567,846,979.57/1,320,937.50
  6. Step 6: Final answer
    x = 767,309.47

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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.