Home / 447,345.56-617,565.60-345,141.38

Finding the Fourth Proportional to 447,345.56, 617,565.60 and 345,141.38

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Solution

The fourth proportional to 447,345.56, 617,565.60 and 345,141.38 is: 476,471.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,345.56 : 617,565.60 = 345,141.38 : x
  2. Step 2: Convert to fraction form
    447,345.56/617,565.60 = 345,141.38/x
  3. Step 3: Cross multiply
    447,345.56x = 617,565.60 × 345,141.38
  4. Step 4: Simplify right side
    447,345.56x = 213,147,443,424.53
  5. Step 5: Solve for x
    x = 213,147,443,424.53/447,345.56
  6. Step 6: Final answer
    x = 476,471.57

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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.