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Finding the Fourth Proportional to 591,590.40, 887,942.40 and 311,308.80

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Solution

The fourth proportional to 591,590.40, 887,942.40 and 311,308.80 is: 467,256.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,590.40 : 887,942.40 = 311,308.80 : x
  2. Step 2: Convert to fraction form
    591,590.40/887,942.40 = 311,308.80/x
  3. Step 3: Cross multiply
    591,590.40x = 887,942.40 × 311,308.80
  4. Step 4: Simplify right side
    591,590.40x = 276,424,283,013.12
  5. Step 5: Solve for x
    x = 276,424,283,013.12/591,590.40
  6. Step 6: Final answer
    x = 467,256.20

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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.