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Finding the Fourth Proportional to 613,984, 921,500.88 and 240,269.44

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Solution

The fourth proportional to 613,984, 921,500.88 and 240,269.44 is: 360,609.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,984 : 921,500.88 = 240,269.44 : x
  2. Step 2: Convert to fraction form
    613,984/921,500.88 = 240,269.44/x
  3. Step 3: Cross multiply
    613,984x = 921,500.88 × 240,269.44
  4. Step 4: Simplify right side
    613,984x = 221,408,500,397.11
  5. Step 5: Solve for x
    x = 221,408,500,397.11/613,984
  6. Step 6: Final answer
    x = 360,609.56

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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.