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Finding the Fourth Proportional to 544,423.40, 815,079.90 and 488,436.20

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Solution

The fourth proportional to 544,423.40, 815,079.90 and 488,436.20 is: 731,259.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,423.40 : 815,079.90 = 488,436.20 : x
  2. Step 2: Convert to fraction form
    544,423.40/815,079.90 = 488,436.20/x
  3. Step 3: Cross multiply
    544,423.40x = 815,079.90 × 488,436.20
  4. Step 4: Simplify right side
    544,423.40x = 398,114,529,052.38
  5. Step 5: Solve for x
    x = 398,114,529,052.38/544,423.40
  6. Step 6: Final answer
    x = 731,259.03

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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.