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Finding the Fourth Proportional to 342,607.70, 512,453.55 and 307,324.10

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Solution

The fourth proportional to 342,607.70, 512,453.55 and 307,324.10 is: 459,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,607.70 : 512,453.55 = 307,324.10 : x
  2. Step 2: Convert to fraction form
    342,607.70/512,453.55 = 307,324.10/x
  3. Step 3: Cross multiply
    342,607.70x = 512,453.55 × 307,324.10
  4. Step 4: Simplify right side
    342,607.70x = 157,489,326,045.56
  5. Step 5: Solve for x
    x = 157,489,326,045.56/342,607.70
  6. Step 6: Final answer
    x = 459,678.30

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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.