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Finding the Fourth Proportional to 647,925.78, 894,315.42 and 376,081.26

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Solution

The fourth proportional to 647,925.78, 894,315.42 and 376,081.26 is: 519,095.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,925.78 : 894,315.42 = 376,081.26 : x
  2. Step 2: Convert to fraction form
    647,925.78/894,315.42 = 376,081.26/x
  3. Step 3: Cross multiply
    647,925.78x = 894,315.42 × 376,081.26
  4. Step 4: Simplify right side
    647,925.78x = 336,335,263,639.05
  5. Step 5: Solve for x
    x = 336,335,263,639.05/647,925.78
  6. Step 6: Final answer
    x = 519,095.36

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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.