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Finding the Third Proportional to 553,062 and 879,403

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Solution

The third proportional to 553,062 and 879,403 is: 1,398,305.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,062 : 879,403 = 879,403 : x
  2. Step 2: Convert to fraction form
    553,062/879,403 = 879,403/x
  3. Step 3: Cross multiply
    553,062x = 879,403 × 879,403
  4. Step 4: Simplify right side
    553,062x = 773,349,636,409
  5. Step 5: Solve for x
    x = 773,349,636,409/553,062
  6. Step 6: Final answer
    x = 1,398,305.50

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.