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Finding the Fourth Proportional to 424,295.60, 637,609.92 and 396,554.72

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Solution

The fourth proportional to 424,295.60, 637,609.92 and 396,554.72 is: 595,922.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,295.60 : 637,609.92 = 396,554.72 : x
  2. Step 2: Convert to fraction form
    424,295.60/637,609.92 = 396,554.72/x
  3. Step 3: Cross multiply
    424,295.60x = 637,609.92 × 396,554.72
  4. Step 4: Simplify right side
    424,295.60x = 252,847,223,294.82
  5. Step 5: Solve for x
    x = 252,847,223,294.82/424,295.60
  6. Step 6: Final answer
    x = 595,922.33

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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.