Home / 859,345.32-1,185,930.20-587,982.36

Finding the Fourth Proportional to 859,345.32, 1,185,930.20 and 587,982.36

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Solution

The fourth proportional to 859,345.32, 1,185,930.20 and 587,982.36 is: 811,438.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,345.32 : 1,185,930.20 = 587,982.36 : x
  2. Step 2: Convert to fraction form
    859,345.32/1,185,930.20 = 587,982.36/x
  3. Step 3: Cross multiply
    859,345.32x = 1,185,930.20 × 587,982.36
  4. Step 4: Simplify right side
    859,345.32x = 697,306,037,791.27
  5. Step 5: Solve for x
    x = 697,306,037,791.27/859,345.32
  6. Step 6: Final answer
    x = 811,438.69

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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.