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Finding the Fourth Proportional to 547,084.40, 820,165.80 and 284,428.40

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Solution

The fourth proportional to 547,084.40, 820,165.80 and 284,428.40 is: 426,403.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,084.40 : 820,165.80 = 284,428.40 : x
  2. Step 2: Convert to fraction form
    547,084.40/820,165.80 = 284,428.40/x
  3. Step 3: Cross multiply
    547,084.40x = 820,165.80 × 284,428.40
  4. Step 4: Simplify right side
    547,084.40x = 233,278,446,228.72
  5. Step 5: Solve for x
    x = 233,278,446,228.72/547,084.40
  6. Step 6: Final answer
    x = 426,403.03

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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.