Home / 766,837.50-1,058,187.61-422,654.48

Finding the Fourth Proportional to 766,837.50, 1,058,187.61 and 422,654.48

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Solution

The fourth proportional to 766,837.50, 1,058,187.61 and 422,654.48 is: 583,236.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,837.50 : 1,058,187.61 = 422,654.48 : x
  2. Step 2: Convert to fraction form
    766,837.50/1,058,187.61 = 422,654.48/x
  3. Step 3: Cross multiply
    766,837.50x = 1,058,187.61 × 422,654.48
  4. Step 4: Simplify right side
    766,837.50x = 447,247,736,827.45
  5. Step 5: Solve for x
    x = 447,247,736,827.45/766,837.50
  6. Step 6: Final answer
    x = 583,236.66

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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.