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Finding the Fourth Proportional to 659,058.07, 988,577.86 and 259,702.31

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Solution

The fourth proportional to 659,058.07, 988,577.86 and 259,702.31 is: 389,549.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,058.07 : 988,577.86 = 259,702.31 : x
  2. Step 2: Convert to fraction form
    659,058.07/988,577.86 = 259,702.31/x
  3. Step 3: Cross multiply
    659,058.07x = 988,577.86 × 259,702.31
  4. Step 4: Simplify right side
    659,058.07x = 256,735,953,856.86
  5. Step 5: Solve for x
    x = 256,735,953,856.86/659,058.07
  6. Step 6: Final answer
    x = 389,549.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.