Home / 800,784.66-1,105,082.95-438,208.61

Finding the Fourth Proportional to 800,784.66, 1,105,082.95 and 438,208.61

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Solution

The fourth proportional to 800,784.66, 1,105,082.95 and 438,208.61 is: 604,727.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,784.66 : 1,105,082.95 = 438,208.61 : x
  2. Step 2: Convert to fraction form
    800,784.66/1,105,082.95 = 438,208.61/x
  3. Step 3: Cross multiply
    800,784.66x = 1,105,082.95 × 438,208.61
  4. Step 4: Simplify right side
    800,784.66x = 484,256,856,833.26
  5. Step 5: Solve for x
    x = 484,256,856,833.26/800,784.66
  6. Step 6: Final answer
    x = 604,727.94

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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.