Home / 420,527.08-630,548.23-287,568.42

Finding the Fourth Proportional to 420,527.08, 630,548.23 and 287,568.42

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Solution

The fourth proportional to 420,527.08, 630,548.23 and 287,568.42 is: 431,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,527.08 : 630,548.23 = 287,568.42 : x
  2. Step 2: Convert to fraction form
    420,527.08/630,548.23 = 287,568.42/x
  3. Step 3: Cross multiply
    420,527.08x = 630,548.23 × 287,568.42
  4. Step 4: Simplify right side
    420,527.08x = 181,325,758,234.90
  5. Step 5: Solve for x
    x = 181,325,758,234.90/420,527.08
  6. Step 6: Final answer
    x = 431,186.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.