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Finding the Third Proportional to 630,699 and 991,246.50

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Solution

The third proportional to 630,699 and 991,246.50 is: 1,557,905.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,699 : 991,246.50 = 991,246.50 : x
  2. Step 2: Convert to fraction form
    630,699/991,246.50 = 991,246.50/x
  3. Step 3: Cross multiply
    630,699x = 991,246.50 × 991,246.50
  4. Step 4: Simplify right side
    630,699x = 982,569,623,762.25
  5. Step 5: Solve for x
    x = 982,569,623,762.25/630,699
  6. Step 6: Final answer
    x = 1,557,905.79

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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.