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Finding the Fourth Proportional to 501,754.16, 692,745 and 310,970

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Solution

The fourth proportional to 501,754.16, 692,745 and 310,970 is: 429,339.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,754.16 : 692,745 = 310,970 : x
  2. Step 2: Convert to fraction form
    501,754.16/692,745 = 310,970/x
  3. Step 3: Cross multiply
    501,754.16x = 692,745 × 310,970
  4. Step 4: Simplify right side
    501,754.16x = 215,422,912,650
  5. Step 5: Solve for x
    x = 215,422,912,650/501,754.16
  6. Step 6: Final answer
    x = 429,339.56

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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.