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Finding the Third Proportional to 587,970 and 1,287,985

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Solution

The third proportional to 587,970 and 1,287,985 is: 2,821,411.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,970 : 1,287,985 = 1,287,985 : x
  2. Step 2: Convert to fraction form
    587,970/1,287,985 = 1,287,985/x
  3. Step 3: Cross multiply
    587,970x = 1,287,985 × 1,287,985
  4. Step 4: Simplify right side
    587,970x = 1,658,905,360,225
  5. Step 5: Solve for x
    x = 1,658,905,360,225/587,970
  6. Step 6: Final answer
    x = 2,821,411.57

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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.