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Finding the Third Proportional to 387,334 and 528,058

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Solution

The third proportional to 387,334 and 528,058 is: 719,909.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,334 : 528,058 = 528,058 : x
  2. Step 2: Convert to fraction form
    387,334/528,058 = 528,058/x
  3. Step 3: Cross multiply
    387,334x = 528,058 × 528,058
  4. Step 4: Simplify right side
    387,334x = 278,845,251,364
  5. Step 5: Solve for x
    x = 278,845,251,364/387,334
  6. Step 6: Final answer
    x = 719,909.05

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.