Home / 800,887.28-1,105,115.24-478,529.20

Finding the Fourth Proportional to 800,887.28, 1,105,115.24 and 478,529.20

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Solution

The fourth proportional to 800,887.28, 1,105,115.24 and 478,529.20 is: 660,305.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,887.28 : 1,105,115.24 = 478,529.20 : x
  2. Step 2: Convert to fraction form
    800,887.28/1,105,115.24 = 478,529.20/x
  3. Step 3: Cross multiply
    800,887.28x = 1,105,115.24 × 478,529.20
  4. Step 4: Simplify right side
    800,887.28x = 528,829,911,705.01
  5. Step 5: Solve for x
    x = 528,829,911,705.01/800,887.28
  6. Step 6: Final answer
    x = 660,305.05

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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.