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Finding the Fourth Proportional to 587,452.10, 810,622.82 and 345,720.29

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Solution

The fourth proportional to 587,452.10, 810,622.82 and 345,720.29 is: 477,058.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,452.10 : 810,622.82 = 345,720.29 : x
  2. Step 2: Convert to fraction form
    587,452.10/810,622.82 = 345,720.29/x
  3. Step 3: Cross multiply
    587,452.10x = 810,622.82 × 345,720.29
  4. Step 4: Simplify right side
    587,452.10x = 280,248,753,222.20
  5. Step 5: Solve for x
    x = 280,248,753,222.20/587,452.10
  6. Step 6: Final answer
    x = 477,058.05

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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.