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Finding the Fourth Proportional to 810,878.82, 1,119,190.42 and 471,542.82

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Solution

The fourth proportional to 810,878.82, 1,119,190.42 and 471,542.82 is: 650,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,878.82 : 1,119,190.42 = 471,542.82 : x
  2. Step 2: Convert to fraction form
    810,878.82/1,119,190.42 = 471,542.82/x
  3. Step 3: Cross multiply
    810,878.82x = 1,119,190.42 × 471,542.82
  4. Step 4: Simplify right side
    810,878.82x = 527,746,206,763.78
  5. Step 5: Solve for x
    x = 527,746,206,763.78/810,878.82
  6. Step 6: Final answer
    x = 650,832.40

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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.