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Finding the Fourth Proportional to 860,480.31, 1,186,755.92 and 763,754.70

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Solution

The fourth proportional to 860,480.31, 1,186,755.92 and 763,754.70 is: 1,053,354.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,480.31 : 1,186,755.92 = 763,754.70 : x
  2. Step 2: Convert to fraction form
    860,480.31/1,186,755.92 = 763,754.70/x
  3. Step 3: Cross multiply
    860,480.31x = 1,186,755.92 × 763,754.70
  4. Step 4: Simplify right side
    860,480.31x = 906,390,419,444.59
  5. Step 5: Solve for x
    x = 906,390,419,444.59/860,480.31
  6. Step 6: Final answer
    x = 1,053,354.05

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1.5x scale

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.