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Finding the Fourth Proportional to 637,601.76, 879,797.34 and 361,916.76

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Solution

The fourth proportional to 637,601.76, 879,797.34 and 361,916.76 is: 499,392.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,601.76 : 879,797.34 = 361,916.76 : x
  2. Step 2: Convert to fraction form
    637,601.76/879,797.34 = 361,916.76/x
  3. Step 3: Cross multiply
    637,601.76x = 879,797.34 × 361,916.76
  4. Step 4: Simplify right side
    637,601.76x = 318,413,402,749.42
  5. Step 5: Solve for x
    x = 318,413,402,749.42/637,601.76
  6. Step 6: Final answer
    x = 499,392.29

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Double scale
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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.