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Finding the Fourth Proportional to 455,164.90, 627,772.45 and 291,837

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Solution

The fourth proportional to 455,164.90, 627,772.45 and 291,837 is: 402,507.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,164.90 : 627,772.45 = 291,837 : x
  2. Step 2: Convert to fraction form
    455,164.90/627,772.45 = 291,837/x
  3. Step 3: Cross multiply
    455,164.90x = 627,772.45 × 291,837
  4. Step 4: Simplify right side
    455,164.90x = 183,207,228,490.65
  5. Step 5: Solve for x
    x = 183,207,228,490.65/455,164.90
  6. Step 6: Final answer
    x = 402,507.37

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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.