Home / 1,011,379.20-1,517,155.68-263,424

Finding the Fourth Proportional to 1,011,379.20, 1,517,155.68 and 263,424

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Solution

The fourth proportional to 1,011,379.20, 1,517,155.68 and 263,424 is: 395,158.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,379.20 : 1,517,155.68 = 263,424 : x
  2. Step 2: Convert to fraction form
    1,011,379.20/1,517,155.68 = 263,424/x
  3. Step 3: Cross multiply
    1,011,379.20x = 1,517,155.68 × 263,424
  4. Step 4: Simplify right side
    1,011,379.20x = 399,655,217,848.32
  5. Step 5: Solve for x
    x = 399,655,217,848.32/1,011,379.20
  6. Step 6: Final answer
    x = 395,158.63

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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.