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Finding the Fourth Proportional to 502,388.38, 692,820.91 and 330,002.16

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Solution

The fourth proportional to 502,388.38, 692,820.91 and 330,002.16 is: 455,090.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,388.38 : 692,820.91 = 330,002.16 : x
  2. Step 2: Convert to fraction form
    502,388.38/692,820.91 = 330,002.16/x
  3. Step 3: Cross multiply
    502,388.38x = 692,820.91 × 330,002.16
  4. Step 4: Simplify right side
    502,388.38x = 228,632,396,793.17
  5. Step 5: Solve for x
    x = 228,632,396,793.17/502,388.38
  6. Step 6: Final answer
    x = 455,090.93

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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.