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Finding the Fourth Proportional to 605,343.16, 908,014.33 and 285,420.30

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Solution

The fourth proportional to 605,343.16, 908,014.33 and 285,420.30 is: 428,130.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,343.16 : 908,014.33 = 285,420.30 : x
  2. Step 2: Convert to fraction form
    605,343.16/908,014.33 = 285,420.30/x
  3. Step 3: Cross multiply
    605,343.16x = 908,014.33 × 285,420.30
  4. Step 4: Simplify right side
    605,343.16x = 259,165,722,472.90
  5. Step 5: Solve for x
    x = 259,165,722,472.90/605,343.16
  6. Step 6: Final answer
    x = 428,130.26

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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.