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Finding the Fourth Proportional to 481,037.86, 721,343.49 and 256,356.42

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Solution

The fourth proportional to 481,037.86, 721,343.49 and 256,356.42 is: 384,420.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,037.86 : 721,343.49 = 256,356.42 : x
  2. Step 2: Convert to fraction form
    481,037.86/721,343.49 = 256,356.42/x
  3. Step 3: Cross multiply
    481,037.86x = 721,343.49 × 256,356.42
  4. Step 4: Simplify right side
    481,037.86x = 184,921,034,686.71
  5. Step 5: Solve for x
    x = 184,921,034,686.71/481,037.86
  6. Step 6: Final answer
    x = 384,420.96

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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.