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Finding the Fourth Proportional to 802,900.50, 1,204,817.31 and 359,668.50

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Solution

The fourth proportional to 802,900.50, 1,204,817.31 and 359,668.50 is: 539,711.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,900.50 : 1,204,817.31 = 359,668.50 : x
  2. Step 2: Convert to fraction form
    802,900.50/1,204,817.31 = 359,668.50/x
  3. Step 3: Cross multiply
    802,900.50x = 1,204,817.31 × 359,668.50
  4. Step 4: Simplify right side
    802,900.50x = 433,334,834,661.74
  5. Step 5: Solve for x
    x = 433,334,834,661.74/802,900.50
  6. Step 6: Final answer
    x = 539,711.75

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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.