Home / 1,263,715.20-1,895,670.72-422,269.92

Finding the Fourth Proportional to 1,263,715.20, 1,895,670.72 and 422,269.92

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Solution

The fourth proportional to 1,263,715.20, 1,895,670.72 and 422,269.92 is: 633,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,715.20 : 1,895,670.72 = 422,269.92 : x
  2. Step 2: Convert to fraction form
    1,263,715.20/1,895,670.72 = 422,269.92/x
  3. Step 3: Cross multiply
    1,263,715.20x = 1,895,670.72 × 422,269.92
  4. Step 4: Simplify right side
    1,263,715.20x = 800,484,723,280.74
  5. Step 5: Solve for x
    x = 800,484,723,280.74/1,263,715.20
  6. Step 6: Final answer
    x = 633,437.60

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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.