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Finding the Fourth Proportional to 664,288.60, 995,412.30 and 495,014.80

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Solution

The fourth proportional to 664,288.60, 995,412.30 and 495,014.80 is: 741,761.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,288.60 : 995,412.30 = 495,014.80 : x
  2. Step 2: Convert to fraction form
    664,288.60/995,412.30 = 495,014.80/x
  3. Step 3: Cross multiply
    664,288.60x = 995,412.30 × 495,014.80
  4. Step 4: Simplify right side
    664,288.60x = 492,743,820,602.04
  5. Step 5: Solve for x
    x = 492,743,820,602.04/664,288.60
  6. Step 6: Final answer
    x = 741,761.67

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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.