Home / 865,955.94-1,298,706.30-258,600.12

Finding the Fourth Proportional to 865,955.94, 1,298,706.30 and 258,600.12

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Solution

The fourth proportional to 865,955.94, 1,298,706.30 and 258,600.12 is: 387,832.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,955.94 : 1,298,706.30 = 258,600.12 : x
  2. Step 2: Convert to fraction form
    865,955.94/1,298,706.30 = 258,600.12/x
  3. Step 3: Cross multiply
    865,955.94x = 1,298,706.30 × 258,600.12
  4. Step 4: Simplify right side
    865,955.94x = 335,845,605,024.76
  5. Step 5: Solve for x
    x = 335,845,605,024.76/865,955.94
  6. Step 6: Final answer
    x = 387,832.21

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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.