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Finding the Fourth Proportional to 536,207.66, 740,032.22 and 309,853.16

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Solution

The fourth proportional to 536,207.66, 740,032.22 and 309,853.16 is: 427,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,207.66 : 740,032.22 = 309,853.16 : x
  2. Step 2: Convert to fraction form
    536,207.66/740,032.22 = 309,853.16/x
  3. Step 3: Cross multiply
    536,207.66x = 740,032.22 × 309,853.16
  4. Step 4: Simplify right side
    536,207.66x = 229,301,321,868.82
  5. Step 5: Solve for x
    x = 229,301,321,868.82/536,207.66
  6. Step 6: Final answer
    x = 427,635.30

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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.