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Finding the Fourth Proportional to 500,660.40, 750,984.12 and 121,584.24

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Solution

The fourth proportional to 500,660.40, 750,984.12 and 121,584.24 is: 182,374.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,660.40 : 750,984.12 = 121,584.24 : x
  2. Step 2: Convert to fraction form
    500,660.40/750,984.12 = 121,584.24/x
  3. Step 3: Cross multiply
    500,660.40x = 750,984.12 × 121,584.24
  4. Step 4: Simplify right side
    500,660.40x = 91,307,833,482.27
  5. Step 5: Solve for x
    x = 91,307,833,482.27/500,660.40
  6. Step 6: Final answer
    x = 182,374.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.