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Finding the Fourth Proportional to 659,299.91, 909,839.39 and 357,493.91

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Solution

The fourth proportional to 659,299.91, 909,839.39 and 357,493.91 is: 493,344.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,299.91 : 909,839.39 = 357,493.91 : x
  2. Step 2: Convert to fraction form
    659,299.91/909,839.39 = 357,493.91/x
  3. Step 3: Cross multiply
    659,299.91x = 909,839.39 × 357,493.91
  4. Step 4: Simplify right side
    659,299.91x = 325,262,034,666.45
  5. Step 5: Solve for x
    x = 325,262,034,666.45/659,299.91
  6. Step 6: Final answer
    x = 493,344.58

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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.