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Finding the Fourth Proportional to 591,630.40, 888,002.40 and 311,348.80

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Solution

The fourth proportional to 591,630.40, 888,002.40 and 311,348.80 is: 467,316.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,630.40 : 888,002.40 = 311,348.80 : x
  2. Step 2: Convert to fraction form
    591,630.40/888,002.40 = 311,348.80/x
  3. Step 3: Cross multiply
    591,630.40x = 888,002.40 × 311,348.80
  4. Step 4: Simplify right side
    591,630.40x = 276,478,481,637.12
  5. Step 5: Solve for x
    x = 276,478,481,637.12/591,630.40
  6. Step 6: Final answer
    x = 467,316.22

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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.