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Finding the Fourth Proportional to 670,565.28, 925,391.08 and 364,647.72

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Solution

The fourth proportional to 670,565.28, 925,391.08 and 364,647.72 is: 503,219.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,565.28 : 925,391.08 = 364,647.72 : x
  2. Step 2: Convert to fraction form
    670,565.28/925,391.08 = 364,647.72/x
  3. Step 3: Cross multiply
    670,565.28x = 925,391.08 × 364,647.72
  4. Step 4: Simplify right side
    670,565.28x = 337,441,751,356.36
  5. Step 5: Solve for x
    x = 337,441,751,356.36/670,565.28
  6. Step 6: Final answer
    x = 503,219.83

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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.