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Finding the Third Proportional to 637,890 and 1,000,787

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Solution

The third proportional to 637,890 and 1,000,787 is: 1,570,136.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,890 : 1,000,787 = 1,000,787 : x
  2. Step 2: Convert to fraction form
    637,890/1,000,787 = 1,000,787/x
  3. Step 3: Cross multiply
    637,890x = 1,000,787 × 1,000,787
  4. Step 4: Simplify right side
    637,890x = 1,001,574,619,369
  5. Step 5: Solve for x
    x = 1,001,574,619,369/637,890
  6. Step 6: Final answer
    x = 1,570,136.89

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.