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Finding the Fourth Proportional to 463,986.16, 640,609.32 and 356,363.92

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Solution

The fourth proportional to 463,986.16, 640,609.32 and 356,363.92 is: 492,019.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,986.16 : 640,609.32 = 356,363.92 : x
  2. Step 2: Convert to fraction form
    463,986.16/640,609.32 = 356,363.92/x
  3. Step 3: Cross multiply
    463,986.16x = 640,609.32 × 356,363.92
  4. Step 4: Simplify right side
    463,986.16x = 228,290,048,463.73
  5. Step 5: Solve for x
    x = 228,290,048,463.73/463,986.16
  6. Step 6: Final answer
    x = 492,019.09

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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.