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Finding the Fourth Proportional to 507,505.72, 700,306.86 and 281,108.92

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Solution

The fourth proportional to 507,505.72, 700,306.86 and 281,108.92 is: 387,902.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,505.72 : 700,306.86 = 281,108.92 : x
  2. Step 2: Convert to fraction form
    507,505.72/700,306.86 = 281,108.92/x
  3. Step 3: Cross multiply
    507,505.72x = 700,306.86 × 281,108.92
  4. Step 4: Simplify right side
    507,505.72x = 196,862,505,083.19
  5. Step 5: Solve for x
    x = 196,862,505,083.19/507,505.72
  6. Step 6: Final answer
    x = 387,902.04

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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.