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Finding the Fourth Proportional to 1,351,872, 1,865,585.04 and 842,574

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Solution

The fourth proportional to 1,351,872, 1,865,585.04 and 842,574 is: 1,162,753.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,872 : 1,865,585.04 = 842,574 : x
  2. Step 2: Convert to fraction form
    1,351,872/1,865,585.04 = 842,574/x
  3. Step 3: Cross multiply
    1,351,872x = 1,865,585.04 × 842,574
  4. Step 4: Simplify right side
    1,351,872x = 1,571,893,449,492.96
  5. Step 5: Solve for x
    x = 1,571,893,449,492.96/1,351,872
  6. Step 6: Final answer
    x = 1,162,753.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.