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Finding the Third Proportional to 423,559.13 and 628,048.69

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Solution

The third proportional to 423,559.13 and 628,048.69 is: 931,263.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,559.13 : 628,048.69 = 628,048.69 : x
  2. Step 2: Convert to fraction form
    423,559.13/628,048.69 = 628,048.69/x
  3. Step 3: Cross multiply
    423,559.13x = 628,048.69 × 628,048.69
  4. Step 4: Simplify right side
    423,559.13x = 394,445,153,870.47
  5. Step 5: Solve for x
    x = 394,445,153,870.47/423,559.13
  6. Step 6: Final answer
    x = 931,263.50

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.