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Finding the Fourth Proportional to 533,390.40, 801,007.20 and 284,558.40

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Solution

The fourth proportional to 533,390.40, 801,007.20 and 284,558.40 is: 427,329.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,390.40 : 801,007.20 = 284,558.40 : x
  2. Step 2: Convert to fraction form
    533,390.40/801,007.20 = 284,558.40/x
  3. Step 3: Cross multiply
    533,390.40x = 801,007.20 × 284,558.40
  4. Step 4: Simplify right side
    533,390.40x = 227,933,327,220.48
  5. Step 5: Solve for x
    x = 227,933,327,220.48/533,390.40
  6. Step 6: Final answer
    x = 427,329.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.