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Finding the Fourth Proportional to 501,689.53, 692,327.97 and 272,240.95

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Solution

The fourth proportional to 501,689.53, 692,327.97 and 272,240.95 is: 375,690.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,689.53 : 692,327.97 = 272,240.95 : x
  2. Step 2: Convert to fraction form
    501,689.53/692,327.97 = 272,240.95/x
  3. Step 3: Cross multiply
    501,689.53x = 692,327.97 × 272,240.95
  4. Step 4: Simplify right side
    501,689.53x = 188,480,024,264.37
  5. Step 5: Solve for x
    x = 188,480,024,264.37/501,689.53
  6. Step 6: Final answer
    x = 375,690.57

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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.