Home / 422,509.27-630,488.10-377,641.75

Finding the Fourth Proportional to 422,509.27, 630,488.10 and 377,641.75

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Solution

The fourth proportional to 422,509.27, 630,488.10 and 377,641.75 is: 563,534.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,509.27 : 630,488.10 = 377,641.75 : x
  2. Step 2: Convert to fraction form
    422,509.27/630,488.10 = 377,641.75/x
  3. Step 3: Cross multiply
    422,509.27x = 630,488.10 × 377,641.75
  4. Step 4: Simplify right side
    422,509.27x = 238,098,629,438.18
  5. Step 5: Solve for x
    x = 238,098,629,438.18/422,509.27
  6. Step 6: Final answer
    x = 563,534.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.