Home / 659,161.81-909,667.79-372,664.81

Finding the Fourth Proportional to 659,161.81, 909,667.79 and 372,664.81

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Solution

The fourth proportional to 659,161.81, 909,667.79 and 372,664.81 is: 514,291.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,161.81 : 909,667.79 = 372,664.81 : x
  2. Step 2: Convert to fraction form
    659,161.81/909,667.79 = 372,664.81/x
  3. Step 3: Cross multiply
    659,161.81x = 909,667.79 × 372,664.81
  4. Step 4: Simplify right side
    659,161.81x = 339,001,172,780.96
  5. Step 5: Solve for x
    x = 339,001,172,780.96/659,161.81
  6. Step 6: Final answer
    x = 514,291.28

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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.