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Finding the Fourth Proportional to 402,454.49, 603,700.05 and 284,651.69

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Solution

The fourth proportional to 402,454.49, 603,700.05 and 284,651.69 is: 426,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,454.49 : 603,700.05 = 284,651.69 : x
  2. Step 2: Convert to fraction form
    402,454.49/603,700.05 = 284,651.69/x
  3. Step 3: Cross multiply
    402,454.49x = 603,700.05 × 284,651.69
  4. Step 4: Simplify right side
    402,454.49x = 171,844,239,485.59
  5. Step 5: Solve for x
    x = 171,844,239,485.59/402,454.49
  6. Step 6: Final answer
    x = 426,990.49

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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.