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Finding the Fourth Proportional to 499,024.94, 687,937.37 and 355,535.87

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Solution

The fourth proportional to 499,024.94, 687,937.37 and 355,535.87 is: 490,128.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,024.94 : 687,937.37 = 355,535.87 : x
  2. Step 2: Convert to fraction form
    499,024.94/687,937.37 = 355,535.87/x
  3. Step 3: Cross multiply
    499,024.94x = 687,937.37 × 355,535.87
  4. Step 4: Simplify right side
    499,024.94x = 244,586,406,131.10
  5. Step 5: Solve for x
    x = 244,586,406,131.10/499,024.94
  6. Step 6: Final answer
    x = 490,128.63

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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.