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Finding the Fourth Proportional to 659,346.48, 909,917.96 and 372,860.82

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Solution

The fourth proportional to 659,346.48, 909,917.96 and 372,860.82 is: 514,559.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,346.48 : 909,917.96 = 372,860.82 : x
  2. Step 2: Convert to fraction form
    659,346.48/909,917.96 = 372,860.82/x
  3. Step 3: Cross multiply
    659,346.48x = 909,917.96 × 372,860.82
  4. Step 4: Simplify right side
    659,346.48x = 339,272,754,834.02
  5. Step 5: Solve for x
    x = 339,272,754,834.02/659,346.48
  6. Step 6: Final answer
    x = 514,559.14

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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.