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Finding the Fourth Proportional to 548,444.40, 822,052.20 and 311,900.40

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Solution

The fourth proportional to 548,444.40, 822,052.20 and 311,900.40 is: 467,501.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,444.40 : 822,052.20 = 311,900.40 : x
  2. Step 2: Convert to fraction form
    548,444.40/822,052.20 = 311,900.40/x
  3. Step 3: Cross multiply
    548,444.40x = 822,052.20 × 311,900.40
  4. Step 4: Simplify right side
    548,444.40x = 256,398,410,000.88
  5. Step 5: Solve for x
    x = 256,398,410,000.88/548,444.40
  6. Step 6: Final answer
    x = 467,501.19

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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.