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Finding the Third Proportional to 553,060 and 879,400

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Solution

The third proportional to 553,060 and 879,400 is: 1,398,301.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,060 : 879,400 = 879,400 : x
  2. Step 2: Convert to fraction form
    553,060/879,400 = 879,400/x
  3. Step 3: Cross multiply
    553,060x = 879,400 × 879,400
  4. Step 4: Simplify right side
    553,060x = 773,344,360,000
  5. Step 5: Solve for x
    x = 773,344,360,000/553,060
  6. Step 6: Final answer
    x = 1,398,301.02

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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.