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Finding the Fourth Proportional to 629,899.54, 869,274.48 and 354,262.71

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Solution

The fourth proportional to 629,899.54, 869,274.48 and 354,262.71 is: 488,889.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,899.54 : 869,274.48 = 354,262.71 : x
  2. Step 2: Convert to fraction form
    629,899.54/869,274.48 = 354,262.71/x
  3. Step 3: Cross multiply
    629,899.54x = 869,274.48 × 354,262.71
  4. Step 4: Simplify right side
    629,899.54x = 307,951,537,606.91
  5. Step 5: Solve for x
    x = 307,951,537,606.91/629,899.54
  6. Step 6: Final answer
    x = 488,889.92

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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.