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Finding the Fourth Proportional to 489,317.33, 675,263.58 and 271,530.47

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Solution

The fourth proportional to 489,317.33, 675,263.58 and 271,530.47 is: 374,715.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,317.33 : 675,263.58 = 271,530.47 : x
  2. Step 2: Convert to fraction form
    489,317.33/675,263.58 = 271,530.47/x
  3. Step 3: Cross multiply
    489,317.33x = 675,263.58 × 271,530.47
  4. Step 4: Simplify right side
    489,317.33x = 183,354,637,251.28
  5. Step 5: Solve for x
    x = 183,354,637,251.28/489,317.33
  6. Step 6: Final answer
    x = 374,715.19

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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.