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Finding the Fourth Proportional to 865,776, 1,298,627.07 and 845,502.48

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Solution

The fourth proportional to 865,776, 1,298,627.07 and 845,502.48 is: 1,268,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,776 : 1,298,627.07 = 845,502.48 : x
  2. Step 2: Convert to fraction form
    865,776/1,298,627.07 = 845,502.48/x
  3. Step 3: Cross multiply
    865,776x = 1,298,627.07 × 845,502.48
  4. Step 4: Simplify right side
    865,776x = 1,097,992,408,280.13
  5. Step 5: Solve for x
    x = 1,097,992,408,280.13/865,776
  6. Step 6: Final answer
    x = 1,268,217.65

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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.