Home / 817,829.54-1,227,269.20-396,875.78

Finding the Fourth Proportional to 817,829.54, 1,227,269.20 and 396,875.78

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Solution

The fourth proportional to 817,829.54, 1,227,269.20 and 396,875.78 is: 595,568.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,829.54 : 1,227,269.20 = 396,875.78 : x
  2. Step 2: Convert to fraction form
    817,829.54/1,227,269.20 = 396,875.78/x
  3. Step 3: Cross multiply
    817,829.54x = 1,227,269.20 × 396,875.78
  4. Step 4: Simplify right side
    817,829.54x = 487,073,421,019.98
  5. Step 5: Solve for x
    x = 487,073,421,019.98/817,829.54
  6. Step 6: Final answer
    x = 595,568.39

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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.