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Finding the Fourth Proportional to 648,201.80, 972,302.70 and 488,534.60

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Solution

The fourth proportional to 648,201.80, 972,302.70 and 488,534.60 is: 732,801.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,201.80 : 972,302.70 = 488,534.60 : x
  2. Step 2: Convert to fraction form
    648,201.80/972,302.70 = 488,534.60/x
  3. Step 3: Cross multiply
    648,201.80x = 972,302.70 × 488,534.60
  4. Step 4: Simplify right side
    648,201.80x = 475,003,510,623.42
  5. Step 5: Solve for x
    x = 475,003,510,623.42/648,201.80
  6. Step 6: Final answer
    x = 732,801.90

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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.