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Finding the Fourth Proportional to 632,287.74, 872,544.87 and 345,806.94

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Solution

The fourth proportional to 632,287.74, 872,544.87 and 345,806.94 is: 477,206.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,287.74 : 872,544.87 = 345,806.94 : x
  2. Step 2: Convert to fraction form
    632,287.74/872,544.87 = 345,806.94/x
  3. Step 3: Cross multiply
    632,287.74x = 872,544.87 × 345,806.94
  4. Step 4: Simplify right side
    632,287.74x = 301,732,071,507.40
  5. Step 5: Solve for x
    x = 301,732,071,507.40/632,287.74
  6. Step 6: Final answer
    x = 477,206.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.