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Finding the Fourth Proportional to 636,548.58, 878,445.72 and 364,616.28

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Solution

The fourth proportional to 636,548.58, 878,445.72 and 364,616.28 is: 503,175.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,548.58 : 878,445.72 = 364,616.28 : x
  2. Step 2: Convert to fraction form
    636,548.58/878,445.72 = 364,616.28/x
  3. Step 3: Cross multiply
    636,548.58x = 878,445.72 × 364,616.28
  4. Step 4: Simplify right side
    636,548.58x = 320,295,610,608.32
  5. Step 5: Solve for x
    x = 320,295,610,608.32/636,548.58
  6. Step 6: Final answer
    x = 503,175.44

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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.