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Finding the Fourth Proportional to 802,709.13, 1,107,749.32 and 440,132.07

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Solution

The fourth proportional to 802,709.13, 1,107,749.32 and 440,132.07 is: 607,388.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,709.13 : 1,107,749.32 = 440,132.07 : x
  2. Step 2: Convert to fraction form
    802,709.13/1,107,749.32 = 440,132.07/x
  3. Step 3: Cross multiply
    802,709.13x = 1,107,749.32 × 440,132.07
  4. Step 4: Simplify right side
    802,709.13x = 487,556,001,252.69
  5. Step 5: Solve for x
    x = 487,556,001,252.69/802,709.13
  6. Step 6: Final answer
    x = 607,388.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.