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Finding the Fourth Proportional to 803,345, 1,108,627 and 440,762.28

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Solution

The fourth proportional to 803,345, 1,108,627 and 440,762.28 is: 608,257.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,345 : 1,108,627 = 440,762.28 : x
  2. Step 2: Convert to fraction form
    803,345/1,108,627 = 440,762.28/x
  3. Step 3: Cross multiply
    803,345x = 1,108,627 × 440,762.28
  4. Step 4: Simplify right side
    803,345x = 488,640,964,189.56
  5. Step 5: Solve for x
    x = 488,640,964,189.56/803,345
  6. Step 6: Final answer
    x = 608,257.93

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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.