Home / 766,741.92-1,058,110.80-422,590.08

Finding the Fourth Proportional to 766,741.92, 1,058,110.80 and 422,590.08

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Solution

The fourth proportional to 766,741.92, 1,058,110.80 and 422,590.08 is: 583,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,741.92 : 1,058,110.80 = 422,590.08 : x
  2. Step 2: Convert to fraction form
    766,741.92/1,058,110.80 = 422,590.08/x
  3. Step 3: Cross multiply
    766,741.92x = 1,058,110.80 × 422,590.08
  4. Step 4: Simplify right side
    766,741.92x = 447,147,127,620.86
  5. Step 5: Solve for x
    x = 447,147,127,620.86/766,741.92
  6. Step 6: Final answer
    x = 583,178.14

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Double scale
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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.