Home / 862,223.69-1,189,869.02-499,857.61

Finding the Fourth Proportional to 862,223.69, 1,189,869.02 and 499,857.61

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Solution

The fourth proportional to 862,223.69, 1,189,869.02 and 499,857.61 is: 689,803.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,223.69 : 1,189,869.02 = 499,857.61 : x
  2. Step 2: Convert to fraction form
    862,223.69/1,189,869.02 = 499,857.61/x
  3. Step 3: Cross multiply
    862,223.69x = 1,189,869.02 × 499,857.61
  4. Step 4: Simplify right side
    862,223.69x = 594,765,078,429.40
  5. Step 5: Solve for x
    x = 594,765,078,429.40/862,223.69
  6. Step 6: Final answer
    x = 689,803.69

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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.