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Finding the Fourth Proportional to 501,486.57, 692,063.63 and 275,132.07

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Solution

The fourth proportional to 501,486.57, 692,063.63 and 275,132.07 is: 379,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,486.57 : 692,063.63 = 275,132.07 : x
  2. Step 2: Convert to fraction form
    501,486.57/692,063.63 = 275,132.07/x
  3. Step 3: Cross multiply
    501,486.57x = 692,063.63 × 275,132.07
  4. Step 4: Simplify right side
    501,486.57x = 190,408,897,717.95
  5. Step 5: Solve for x
    x = 190,408,897,717.95/501,486.57
  6. Step 6: Final answer
    x = 379,688.93

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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.