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Finding the Fourth Proportional to 389,492.96, 580,803.08 and 375,616.44

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Solution

The fourth proportional to 389,492.96, 580,803.08 and 375,616.44 is: 560,110.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,492.96 : 580,803.08 = 375,616.44 : x
  2. Step 2: Convert to fraction form
    389,492.96/580,803.08 = 375,616.44/x
  3. Step 3: Cross multiply
    389,492.96x = 580,803.08 × 375,616.44
  4. Step 4: Simplify right side
    389,492.96x = 218,159,183,372.55
  5. Step 5: Solve for x
    x = 218,159,183,372.55/389,492.96
  6. Step 6: Final answer
    x = 560,110.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.