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Finding the Fourth Proportional to 647,962.28, 894,188.32 and 361,482.36

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Solution

The fourth proportional to 647,962.28, 894,188.32 and 361,482.36 is: 498,845.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,962.28 : 894,188.32 = 361,482.36 : x
  2. Step 2: Convert to fraction form
    647,962.28/894,188.32 = 361,482.36/x
  3. Step 3: Cross multiply
    647,962.28x = 894,188.32 × 361,482.36
  4. Step 4: Simplify right side
    647,962.28x = 323,233,303,294.33
  5. Step 5: Solve for x
    x = 323,233,303,294.33/647,962.28
  6. Step 6: Final answer
    x = 498,845.87

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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.