Home / 323,523.24-487,031.82-290,972.34

Finding the Fourth Proportional to 323,523.24, 487,031.82 and 290,972.34

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Solution

The fourth proportional to 323,523.24, 487,031.82 and 290,972.34 is: 438,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,523.24 : 487,031.82 = 290,972.34 : x
  2. Step 2: Convert to fraction form
    323,523.24/487,031.82 = 290,972.34/x
  3. Step 3: Cross multiply
    323,523.24x = 487,031.82 × 290,972.34
  4. Step 4: Simplify right side
    323,523.24x = 141,712,788,319.86
  5. Step 5: Solve for x
    x = 141,712,788,319.86/323,523.24
  6. Step 6: Final answer
    x = 438,029.70

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.