Home / 800,734.64-1,105,027.80-438,190.64

Finding the Fourth Proportional to 800,734.64, 1,105,027.80 and 438,190.64

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Solution

The fourth proportional to 800,734.64, 1,105,027.80 and 438,190.64 is: 604,710.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,734.64 : 1,105,027.80 = 438,190.64 : x
  2. Step 2: Convert to fraction form
    800,734.64/1,105,027.80 = 438,190.64/x
  3. Step 3: Cross multiply
    800,734.64x = 1,105,027.80 × 438,190.64
  4. Step 4: Simplify right side
    800,734.64x = 484,212,838,899.79
  5. Step 5: Solve for x
    x = 484,212,838,899.79/800,734.64
  6. Step 6: Final answer
    x = 604,710.74

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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.