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Finding the Fourth Proportional to 641,805.62, 962,730.76 and 304,672.60

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Solution

The fourth proportional to 641,805.62, 962,730.76 and 304,672.60 is: 457,019.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,805.62 : 962,730.76 = 304,672.60 : x
  2. Step 2: Convert to fraction form
    641,805.62/962,730.76 = 304,672.60/x
  3. Step 3: Cross multiply
    641,805.62x = 962,730.76 × 304,672.60
  4. Step 4: Simplify right side
    641,805.62x = 293,317,683,749.18
  5. Step 5: Solve for x
    x = 293,317,683,749.18/641,805.62
  6. Step 6: Final answer
    x = 457,019.50

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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.