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Finding the Fourth Proportional to 884,490.39, 1,326,728.29 and 253,404.81

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Solution

The fourth proportional to 884,490.39, 1,326,728.29 and 253,404.81 is: 380,105.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,490.39 : 1,326,728.29 = 253,404.81 : x
  2. Step 2: Convert to fraction form
    884,490.39/1,326,728.29 = 253,404.81/x
  3. Step 3: Cross multiply
    884,490.39x = 1,326,728.29 × 253,404.81
  4. Step 4: Simplify right side
    884,490.39x = 336,199,323,615.43
  5. Step 5: Solve for x
    x = 336,199,323,615.43/884,490.39
  6. Step 6: Final answer
    x = 380,105.12

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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.