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Finding the Fourth Proportional to 800,330.40, 1,122,328.80 and 800,330.40

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Solution

The fourth proportional to 800,330.40, 1,122,328.80 and 800,330.40 is: 1,122,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,330.40 : 1,122,328.80 = 800,330.40 : x
  2. Step 2: Convert to fraction form
    800,330.40/1,122,328.80 = 800,330.40/x
  3. Step 3: Cross multiply
    800,330.40x = 1,122,328.80 × 800,330.40
  4. Step 4: Simplify right side
    800,330.40x = 898,233,857,435.52
  5. Step 5: Solve for x
    x = 898,233,857,435.52/800,330.40
  6. Step 6: Final answer
    x = 1,122,328.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.