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Finding the Third Proportional to 432,590 and 578,654

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Solution

The third proportional to 432,590 and 578,654 is: 774,036.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,590 : 578,654 = 578,654 : x
  2. Step 2: Convert to fraction form
    432,590/578,654 = 578,654/x
  3. Step 3: Cross multiply
    432,590x = 578,654 × 578,654
  4. Step 4: Simplify right side
    432,590x = 334,840,451,716
  5. Step 5: Solve for x
    x = 334,840,451,716/432,590
  6. Step 6: Final answer
    x = 774,036.51

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.