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Finding the Fourth Proportional to 403,578, 603,872.34 and 252,615.60

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Solution

The fourth proportional to 403,578, 603,872.34 and 252,615.60 is: 377,987.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,578 : 603,872.34 = 252,615.60 : x
  2. Step 2: Convert to fraction form
    403,578/603,872.34 = 252,615.60/x
  3. Step 3: Cross multiply
    403,578x = 603,872.34 × 252,615.60
  4. Step 4: Simplify right side
    403,578x = 152,547,573,492.50
  5. Step 5: Solve for x
    x = 152,547,573,492.50/403,578
  6. Step 6: Final answer
    x = 377,987.83

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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.