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Finding the Third Proportional to 708,390 and 1,528,731

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Solution

The third proportional to 708,390 and 1,528,731 is: 3,299,056.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,390 : 1,528,731 = 1,528,731 : x
  2. Step 2: Convert to fraction form
    708,390/1,528,731 = 1,528,731/x
  3. Step 3: Cross multiply
    708,390x = 1,528,731 × 1,528,731
  4. Step 4: Simplify right side
    708,390x = 2,337,018,470,361
  5. Step 5: Solve for x
    x = 2,337,018,470,361/708,390
  6. Step 6: Final answer
    x = 3,299,056.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.