Home / 862,206.60-1,189,845.44-499,840.52

Finding the Fourth Proportional to 862,206.60, 1,189,845.44 and 499,840.52

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Solution

The fourth proportional to 862,206.60, 1,189,845.44 and 499,840.52 is: 689,780.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,206.60 : 1,189,845.44 = 499,840.52 : x
  2. Step 2: Convert to fraction form
    862,206.60/1,189,845.44 = 499,840.52/x
  3. Step 3: Cross multiply
    862,206.60x = 1,189,845.44 × 499,840.52
  4. Step 4: Simplify right side
    862,206.60x = 594,732,962,865.16
  5. Step 5: Solve for x
    x = 594,732,962,865.16/862,206.60
  6. Step 6: Final answer
    x = 689,780.11

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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.