Home / 766,692.19-1,058,042.45-422,540.70

Finding the Fourth Proportional to 766,692.19, 1,058,042.45 and 422,540.70

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Solution

The fourth proportional to 766,692.19, 1,058,042.45 and 422,540.70 is: 583,110.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,692.19 : 1,058,042.45 = 422,540.70 : x
  2. Step 2: Convert to fraction form
    766,692.19/1,058,042.45 = 422,540.70/x
  3. Step 3: Cross multiply
    766,692.19x = 1,058,042.45 × 422,540.70
  4. Step 4: Simplify right side
    766,692.19x = 447,066,000,492.90
  5. Step 5: Solve for x
    x = 447,066,000,492.90/766,692.19
  6. Step 6: Final answer
    x = 583,110.16

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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.