Home / 520,680.27-718,605.33-291,250.30

Finding the Fourth Proportional to 520,680.27, 718,605.33 and 291,250.30

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Solution

The fourth proportional to 520,680.27, 718,605.33 and 291,250.30 is: 401,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,680.27 : 718,605.33 = 291,250.30 : x
  2. Step 2: Convert to fraction form
    520,680.27/718,605.33 = 291,250.30/x
  3. Step 3: Cross multiply
    520,680.27x = 718,605.33 × 291,250.30
  4. Step 4: Simplify right side
    520,680.27x = 209,294,017,944.10
  5. Step 5: Solve for x
    x = 209,294,017,944.10/520,680.27
  6. Step 6: Final answer
    x = 401,962.64

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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.