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Finding the Fourth Proportional to 610,390.88, 915,659.84 and 294,625.76

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Solution

The fourth proportional to 610,390.88, 915,659.84 and 294,625.76 is: 441,974.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,390.88 : 915,659.84 = 294,625.76 : x
  2. Step 2: Convert to fraction form
    610,390.88/915,659.84 = 294,625.76/x
  3. Step 3: Cross multiply
    610,390.88x = 915,659.84 × 294,625.76
  4. Step 4: Simplify right side
    610,390.88x = 269,776,976,261.48
  5. Step 5: Solve for x
    x = 269,776,976,261.48/610,390.88
  6. Step 6: Final answer
    x = 441,974.13

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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.