Home / 659,004.11-909,619.01-383,426.80

Finding the Fourth Proportional to 659,004.11, 909,619.01 and 383,426.80

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Solution

The fourth proportional to 659,004.11, 909,619.01 and 383,426.80 is: 529,241.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,004.11 : 909,619.01 = 383,426.80 : x
  2. Step 2: Convert to fraction form
    659,004.11/909,619.01 = 383,426.80/x
  3. Step 3: Cross multiply
    659,004.11x = 909,619.01 × 383,426.80
  4. Step 4: Simplify right side
    659,004.11x = 348,772,303,470.14
  5. Step 5: Solve for x
    x = 348,772,303,470.14/659,004.11
  6. Step 6: Final answer
    x = 529,241.47

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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.