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Finding the Third Proportional to 578,816 and 1,240,692

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Solution

The third proportional to 578,816 and 1,240,692 is: 2,659,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,816 : 1,240,692 = 1,240,692 : x
  2. Step 2: Convert to fraction form
    578,816/1,240,692 = 1,240,692/x
  3. Step 3: Cross multiply
    578,816x = 1,240,692 × 1,240,692
  4. Step 4: Simplify right side
    578,816x = 1,539,316,638,864
  5. Step 5: Solve for x
    x = 1,539,316,638,864/578,816
  6. Step 6: Final answer
    x = 2,659,423.10

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.