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Finding the Fourth Proportional to 879,265.65, 1,318,209.48 and 347,184.96

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Solution

The fourth proportional to 879,265.65, 1,318,209.48 and 347,184.96 is: 520,505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,265.65 : 1,318,209.48 = 347,184.96 : x
  2. Step 2: Convert to fraction form
    879,265.65/1,318,209.48 = 347,184.96/x
  3. Step 3: Cross multiply
    879,265.65x = 1,318,209.48 × 347,184.96
  4. Step 4: Simplify right side
    879,265.65x = 457,662,500,642.14
  5. Step 5: Solve for x
    x = 457,662,500,642.14/879,265.65
  6. Step 6: Final answer
    x = 520,505.38

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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.