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Finding the Fourth Proportional to 605,708.40, 908,234.55 and 250,320.90

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Solution

The fourth proportional to 605,708.40, 908,234.55 and 250,320.90 is: 375,345.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,708.40 : 908,234.55 = 250,320.90 : x
  2. Step 2: Convert to fraction form
    605,708.40/908,234.55 = 250,320.90/x
  3. Step 3: Cross multiply
    605,708.40x = 908,234.55 × 250,320.90
  4. Step 4: Simplify right side
    605,708.40x = 227,350,089,967.10
  5. Step 5: Solve for x
    x = 227,350,089,967.10/605,708.40
  6. Step 6: Final answer
    x = 375,345.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.