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Finding the Fourth Proportional to 647,853.31, 894,037.08 and 361,373.32

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Solution

The fourth proportional to 647,853.31, 894,037.08 and 361,373.32 is: 498,694.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,853.31 : 894,037.08 = 361,373.32 : x
  2. Step 2: Convert to fraction form
    647,853.31/894,037.08 = 361,373.32/x
  3. Step 3: Cross multiply
    647,853.31x = 894,037.08 × 361,373.32
  4. Step 4: Simplify right side
    647,853.31x = 323,081,147,802.71
  5. Step 5: Solve for x
    x = 323,081,147,802.71/647,853.31
  6. Step 6: Final answer
    x = 498,694.91

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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.