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Finding the Fourth Proportional to 637,884.72, 957,420 and 322,567.92

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Solution

The fourth proportional to 637,884.72, 957,420 and 322,567.92 is: 484,151.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,884.72 : 957,420 = 322,567.92 : x
  2. Step 2: Convert to fraction form
    637,884.72/957,420 = 322,567.92/x
  3. Step 3: Cross multiply
    637,884.72x = 957,420 × 322,567.92
  4. Step 4: Simplify right side
    637,884.72x = 308,832,977,966.40
  5. Step 5: Solve for x
    x = 308,832,977,966.40/637,884.72
  6. Step 6: Final answer
    x = 484,151.71

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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.