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Finding the Fourth Proportional to 800,560.40, 1,104,781.48 and 437,976.32

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Solution

The fourth proportional to 800,560.40, 1,104,781.48 and 437,976.32 is: 604,411.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,560.40 : 1,104,781.48 = 437,976.32 : x
  2. Step 2: Convert to fraction form
    800,560.40/1,104,781.48 = 437,976.32/x
  3. Step 3: Cross multiply
    800,560.40x = 1,104,781.48 × 437,976.32
  4. Step 4: Simplify right side
    800,560.40x = 483,868,120,395.71
  5. Step 5: Solve for x
    x = 483,868,120,395.71/800,560.40
  6. Step 6: Final answer
    x = 604,411.76

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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.