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Finding the Fourth Proportional to 438,729.40, 658,094.10 and 438,729.40

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Solution

The fourth proportional to 438,729.40, 658,094.10 and 438,729.40 is: 658,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,729.40 : 658,094.10 = 438,729.40 : x
  2. Step 2: Convert to fraction form
    438,729.40/658,094.10 = 438,729.40/x
  3. Step 3: Cross multiply
    438,729.40x = 658,094.10 × 438,729.40
  4. Step 4: Simplify right side
    438,729.40x = 288,725,229,636.54
  5. Step 5: Solve for x
    x = 288,725,229,636.54/438,729.40
  6. Step 6: Final answer
    x = 658,094.10

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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.