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Finding the Fourth Proportional to 647,288.72, 893,239.84 and 360,802.65

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Solution

The fourth proportional to 647,288.72, 893,239.84 and 360,802.65 is: 497,897.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,288.72 : 893,239.84 = 360,802.65 : x
  2. Step 2: Convert to fraction form
    647,288.72/893,239.84 = 360,802.65/x
  3. Step 3: Cross multiply
    647,288.72x = 893,239.84 × 360,802.65
  4. Step 4: Simplify right side
    647,288.72x = 322,283,299,553.56
  5. Step 5: Solve for x
    x = 322,283,299,553.56/647,288.72
  6. Step 6: Final answer
    x = 497,897.29

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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.