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Finding the Fourth Proportional to 659,338.62, 909,887.67 and 357,532.62

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Solution

The fourth proportional to 659,338.62, 909,887.67 and 357,532.62 is: 493,395.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,338.62 : 909,887.67 = 357,532.62 : x
  2. Step 2: Convert to fraction form
    659,338.62/909,887.67 = 357,532.62/x
  3. Step 3: Cross multiply
    659,338.62x = 909,887.67 × 357,532.62
  4. Step 4: Simplify right side
    659,338.62x = 325,314,522,560.80
  5. Step 5: Solve for x
    x = 325,314,522,560.80/659,338.62
  6. Step 6: Final answer
    x = 493,395.22

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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.