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Finding the Fourth Proportional to 641,084.47, 884,718.43 and 365,483.09

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Solution

The fourth proportional to 641,084.47, 884,718.43 and 365,483.09 is: 504,379.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,084.47 : 884,718.43 = 365,483.09 : x
  2. Step 2: Convert to fraction form
    641,084.47/884,718.43 = 365,483.09/x
  3. Step 3: Cross multiply
    641,084.47x = 884,718.43 × 365,483.09
  4. Step 4: Simplify right side
    641,084.47x = 323,349,623,953.74
  5. Step 5: Solve for x
    x = 323,349,623,953.74/641,084.47
  6. Step 6: Final answer
    x = 504,379.12

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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.