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Finding the Fourth Proportional to 861,848, 1,292,912.08 and 254,697.92

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Solution

The fourth proportional to 861,848, 1,292,912.08 and 254,697.92 is: 382,088.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,848 : 1,292,912.08 = 254,697.92 : x
  2. Step 2: Convert to fraction form
    861,848/1,292,912.08 = 254,697.92/x
  3. Step 3: Cross multiply
    861,848x = 1,292,912.08 × 254,697.92
  4. Step 4: Simplify right side
    861,848x = 329,302,017,518.87
  5. Step 5: Solve for x
    x = 329,302,017,518.87/861,848
  6. Step 6: Final answer
    x = 382,088.28

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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.