Home / 434,979.60-652,469.40-330,003.60

Finding the Fourth Proportional to 434,979.60, 652,469.40 and 330,003.60

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Solution

The fourth proportional to 434,979.60, 652,469.40 and 330,003.60 is: 495,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,979.60 : 652,469.40 = 330,003.60 : x
  2. Step 2: Convert to fraction form
    434,979.60/652,469.40 = 330,003.60/x
  3. Step 3: Cross multiply
    434,979.60x = 652,469.40 × 330,003.60
  4. Step 4: Simplify right side
    434,979.60x = 215,317,250,889.84
  5. Step 5: Solve for x
    x = 215,317,250,889.84/434,979.60
  6. Step 6: Final answer
    x = 495,005.40

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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.