Home / 820,060.26-1,131,807.78-497,708.10

Finding the Fourth Proportional to 820,060.26, 1,131,807.78 and 497,708.10

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Solution

The fourth proportional to 820,060.26, 1,131,807.78 and 497,708.10 is: 686,912.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,060.26 : 1,131,807.78 = 497,708.10 : x
  2. Step 2: Convert to fraction form
    820,060.26/1,131,807.78 = 497,708.10/x
  3. Step 3: Cross multiply
    820,060.26x = 1,131,807.78 × 497,708.10
  4. Step 4: Simplify right side
    820,060.26x = 563,309,899,749.02
  5. Step 5: Solve for x
    x = 563,309,899,749.02/820,060.26
  6. Step 6: Final answer
    x = 686,912.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.