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Finding the Fourth Proportional to 591,602.40, 887,960.40 and 311,320.80

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Solution

The fourth proportional to 591,602.40, 887,960.40 and 311,320.80 is: 467,274.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,602.40 : 887,960.40 = 311,320.80 : x
  2. Step 2: Convert to fraction form
    591,602.40/887,960.40 = 311,320.80/x
  3. Step 3: Cross multiply
    591,602.40x = 887,960.40 × 311,320.80
  4. Step 4: Simplify right side
    591,602.40x = 276,440,542,096.32
  5. Step 5: Solve for x
    x = 276,440,542,096.32/591,602.40
  6. Step 6: Final answer
    x = 467,274.21

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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.