Home / 766,748.80-1,058,070.16-422,583.66

Finding the Fourth Proportional to 766,748.80, 1,058,070.16 and 422,583.66

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Solution

The fourth proportional to 766,748.80, 1,058,070.16 and 422,583.66 is: 583,141.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,748.80 : 1,058,070.16 = 422,583.66 : x
  2. Step 2: Convert to fraction form
    766,748.80/1,058,070.16 = 422,583.66/x
  3. Step 3: Cross multiply
    766,748.80x = 1,058,070.16 × 422,583.66
  4. Step 4: Simplify right side
    766,748.80x = 447,123,161,277.82
  5. Step 5: Solve for x
    x = 447,123,161,277.82/766,748.80
  6. Step 6: Final answer
    x = 583,141.65

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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.