Home / 2,928,488.40-4,391,703.36-878,537.70

Finding the Fourth Proportional to 2,928,488.40, 4,391,703.36 and 878,537.70

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Solution

The fourth proportional to 2,928,488.40, 4,391,703.36 and 878,537.70 is: 1,317,497.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928,488.40 : 4,391,703.36 = 878,537.70 : x
  2. Step 2: Convert to fraction form
    2,928,488.40/4,391,703.36 = 878,537.70/x
  3. Step 3: Cross multiply
    2,928,488.40x = 4,391,703.36 × 878,537.70
  4. Step 4: Simplify right side
    2,928,488.40x = 3,858,276,968,976.67
  5. Step 5: Solve for x
    x = 3,858,276,968,976.67/2,928,488.40
  6. Step 6: Final answer
    x = 1,317,497.78

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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.