Home / 766,755.31-1,058,079.12-422,590.16

Finding the Fourth Proportional to 766,755.31, 1,058,079.12 and 422,590.16

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Solution

The fourth proportional to 766,755.31, 1,058,079.12 and 422,590.16 is: 583,150.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,755.31 : 1,058,079.12 = 422,590.16 : x
  2. Step 2: Convert to fraction form
    766,755.31/1,058,079.12 = 422,590.16/x
  3. Step 3: Cross multiply
    766,755.31x = 1,058,079.12 × 422,590.16
  4. Step 4: Simplify right side
    766,755.31x = 447,133,824,613.46
  5. Step 5: Solve for x
    x = 447,133,824,613.46/766,755.31
  6. Step 6: Final answer
    x = 583,150.61

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Double scale
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Similar ratio
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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.