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Finding the Fourth Proportional to 872,506.76, 1,308,776.54 and 273,454.65

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Solution

The fourth proportional to 872,506.76, 1,308,776.54 and 273,454.65 is: 410,187.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,506.76 : 1,308,776.54 = 273,454.65 : x
  2. Step 2: Convert to fraction form
    872,506.76/1,308,776.54 = 273,454.65/x
  3. Step 3: Cross multiply
    872,506.76x = 1,308,776.54 × 273,454.65
  4. Step 4: Simplify right side
    872,506.76x = 357,891,029,306.64
  5. Step 5: Solve for x
    x = 357,891,029,306.64/872,506.76
  6. Step 6: Final answer
    x = 410,187.12

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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.