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Finding the Third Proportional to 437,402 and 558,903

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Solution

The third proportional to 437,402 and 558,903 is: 714,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,402 : 558,903 = 558,903 : x
  2. Step 2: Convert to fraction form
    437,402/558,903 = 558,903/x
  3. Step 3: Cross multiply
    437,402x = 558,903 × 558,903
  4. Step 4: Simplify right side
    437,402x = 312,372,563,409
  5. Step 5: Solve for x
    x = 312,372,563,409/437,402
  6. Step 6: Final answer
    x = 714,154.40

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.