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Finding the Fourth Proportional to 637,886.72, 957,423 and 322,569.92

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Solution

The fourth proportional to 637,886.72, 957,423 and 322,569.92 is: 484,154.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,886.72 : 957,423 = 322,569.92 : x
  2. Step 2: Convert to fraction form
    637,886.72/957,423 = 322,569.92/x
  3. Step 3: Cross multiply
    637,886.72x = 957,423 × 322,569.92
  4. Step 4: Simplify right side
    637,886.72x = 308,835,860,516.16
  5. Step 5: Solve for x
    x = 308,835,860,516.16/637,886.72
  6. Step 6: Final answer
    x = 484,154.71

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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.