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Finding the Fourth Proportional to 654,090.08, 902,718.88 and 363,730.40

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Solution

The fourth proportional to 654,090.08, 902,718.88 and 363,730.40 is: 501,989.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,090.08 : 902,718.88 = 363,730.40 : x
  2. Step 2: Convert to fraction form
    654,090.08/902,718.88 = 363,730.40/x
  3. Step 3: Cross multiply
    654,090.08x = 902,718.88 × 363,730.40
  4. Step 4: Simplify right side
    654,090.08x = 328,346,299,309.95
  5. Step 5: Solve for x
    x = 328,346,299,309.95/654,090.08
  6. Step 6: Final answer
    x = 501,989.42

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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.