Home / 800,885.95-1,105,223.04-438,309.60

Finding the Fourth Proportional to 800,885.95, 1,105,223.04 and 438,309.60

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Solution

The fourth proportional to 800,885.95, 1,105,223.04 and 438,309.60 is: 604,867.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,885.95 : 1,105,223.04 = 438,309.60 : x
  2. Step 2: Convert to fraction form
    800,885.95/1,105,223.04 = 438,309.60/x
  3. Step 3: Cross multiply
    800,885.95x = 1,105,223.04 × 438,309.60
  4. Step 4: Simplify right side
    800,885.95x = 484,429,863,047.07
  5. Step 5: Solve for x
    x = 484,429,863,047.07/800,885.95
  6. Step 6: Final answer
    x = 604,867.48

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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.