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Finding the Fourth Proportional to 612,788.44, 845,648.01 and 344,516.44

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Solution

The fourth proportional to 612,788.44, 845,648.01 and 344,516.44 is: 475,432.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,788.44 : 845,648.01 = 344,516.44 : x
  2. Step 2: Convert to fraction form
    612,788.44/845,648.01 = 344,516.44/x
  3. Step 3: Cross multiply
    612,788.44x = 845,648.01 × 344,516.44
  4. Step 4: Simplify right side
    612,788.44x = 291,339,641,898.28
  5. Step 5: Solve for x
    x = 291,339,641,898.28/612,788.44
  6. Step 6: Final answer
    x = 475,432.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.