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Finding the Fourth Proportional to 499,151.02, 688,969.72 and 295,272.81

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Solution

The fourth proportional to 499,151.02, 688,969.72 and 295,272.81 is: 407,560.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,151.02 : 688,969.72 = 295,272.81 : x
  2. Step 2: Convert to fraction form
    499,151.02/688,969.72 = 295,272.81/x
  3. Step 3: Cross multiply
    499,151.02x = 688,969.72 × 295,272.81
  4. Step 4: Simplify right side
    499,151.02x = 203,434,025,229.31
  5. Step 5: Solve for x
    x = 203,434,025,229.31/499,151.02
  6. Step 6: Final answer
    x = 407,560.07

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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.