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Finding the Third Proportional to 369,279 and 528,030

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Solution

The third proportional to 369,279 and 528,030 is: 755,027.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,279 : 528,030 = 528,030 : x
  2. Step 2: Convert to fraction form
    369,279/528,030 = 528,030/x
  3. Step 3: Cross multiply
    369,279x = 528,030 × 528,030
  4. Step 4: Simplify right side
    369,279x = 278,815,680,900
  5. Step 5: Solve for x
    x = 278,815,680,900/369,279
  6. Step 6: Final answer
    x = 755,027.18

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.