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Finding the Fourth Proportional to 802,969.32, 1,108,103.13 and 440,395.77

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Solution

The fourth proportional to 802,969.32, 1,108,103.13 and 440,395.77 is: 607,749.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,969.32 : 1,108,103.13 = 440,395.77 : x
  2. Step 2: Convert to fraction form
    802,969.32/1,108,103.13 = 440,395.77/x
  3. Step 3: Cross multiply
    802,969.32x = 1,108,103.13 × 440,395.77
  4. Step 4: Simplify right side
    802,969.32x = 488,003,924,534.26
  5. Step 5: Solve for x
    x = 488,003,924,534.26/802,969.32
  6. Step 6: Final answer
    x = 607,749.16

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Why These Related Problems?

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