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Finding the Fourth Proportional to 648,602.20, 972,903.30 and 227,920.60

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Solution

The fourth proportional to 648,602.20, 972,903.30 and 227,920.60 is: 341,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,602.20 : 972,903.30 = 227,920.60 : x
  2. Step 2: Convert to fraction form
    648,602.20/972,903.30 = 227,920.60/x
  3. Step 3: Cross multiply
    648,602.20x = 972,903.30 × 227,920.60
  4. Step 4: Simplify right side
    648,602.20x = 221,744,703,877.98
  5. Step 5: Solve for x
    x = 221,744,703,877.98/648,602.20
  6. Step 6: Final answer
    x = 341,880.90

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Double scale
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Similar ratio
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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.