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Finding the Fourth Proportional to 688,592.90, 950,110.76 and 401,982.90

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Solution

The fourth proportional to 688,592.90, 950,110.76 and 401,982.90 is: 554,650.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,592.90 : 950,110.76 = 401,982.90 : x
  2. Step 2: Convert to fraction form
    688,592.90/950,110.76 = 401,982.90/x
  3. Step 3: Cross multiply
    688,592.90x = 950,110.76 × 401,982.90
  4. Step 4: Simplify right side
    688,592.90x = 381,928,278,626.00
  5. Step 5: Solve for x
    x = 381,928,278,626.00/688,592.90
  6. Step 6: Final answer
    x = 554,650.33

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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.