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Finding the Fourth Proportional to 3,276,357.65, 4,914,204.32 and 879,890.89

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Solution

The fourth proportional to 3,276,357.65, 4,914,204.32 and 879,890.89 is: 1,319,747.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276,357.65 : 4,914,204.32 = 879,890.89 : x
  2. Step 2: Convert to fraction form
    3,276,357.65/4,914,204.32 = 879,890.89/x
  3. Step 3: Cross multiply
    3,276,357.65x = 4,914,204.32 × 879,890.89
  4. Step 4: Simplify right side
    3,276,357.65x = 4,323,963,583,796.17
  5. Step 5: Solve for x
    x = 4,323,963,583,796.17/3,276,357.65
  6. Step 6: Final answer
    x = 1,319,747.12

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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.