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Finding the Fourth Proportional to 456,984.68, 630,549.24 and 287,120.39

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Solution

The fourth proportional to 456,984.68, 630,549.24 and 287,120.39 is: 396,169.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,984.68 : 630,549.24 = 287,120.39 : x
  2. Step 2: Convert to fraction form
    456,984.68/630,549.24 = 287,120.39/x
  3. Step 3: Cross multiply
    456,984.68x = 630,549.24 × 287,120.39
  4. Step 4: Simplify right side
    456,984.68x = 181,043,543,703.00
  5. Step 5: Solve for x
    x = 181,043,543,703.00/456,984.68
  6. Step 6: Final answer
    x = 396,169.83

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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.