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Finding the Third Proportional to 783,990 and 1,717,440

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Solution

The third proportional to 783,990 and 1,717,440 is: 3,762,293.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,990 : 1,717,440 = 1,717,440 : x
  2. Step 2: Convert to fraction form
    783,990/1,717,440 = 1,717,440/x
  3. Step 3: Cross multiply
    783,990x = 1,717,440 × 1,717,440
  4. Step 4: Simplify right side
    783,990x = 2,949,600,153,600
  5. Step 5: Solve for x
    x = 2,949,600,153,600/783,990
  6. Step 6: Final answer
    x = 3,762,293.08

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.