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Finding the Fourth Proportional to 869,252.30, 1,218,612.10 and 869,252.30

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Solution

The fourth proportional to 869,252.30, 1,218,612.10 and 869,252.30 is: 1,218,612.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,252.30 : 1,218,612.10 = 869,252.30 : x
  2. Step 2: Convert to fraction form
    869,252.30/1,218,612.10 = 869,252.30/x
  3. Step 3: Cross multiply
    869,252.30x = 1,218,612.10 × 869,252.30
  4. Step 4: Simplify right side
    869,252.30x = 1,059,281,370,732.83
  5. Step 5: Solve for x
    x = 1,059,281,370,732.83/869,252.30
  6. Step 6: Final answer
    x = 1,218,612.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.