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Finding the Fourth Proportional to 604,628.92, 834,362.90 and 328,987.91

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Solution

The fourth proportional to 604,628.92, 834,362.90 and 328,987.91 is: 453,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,628.92 : 834,362.90 = 328,987.91 : x
  2. Step 2: Convert to fraction form
    604,628.92/834,362.90 = 328,987.91/x
  3. Step 3: Cross multiply
    604,628.92x = 834,362.90 × 328,987.91
  4. Step 4: Simplify right side
    604,628.92x = 274,495,306,691.25
  5. Step 5: Solve for x
    x = 274,495,306,691.25/604,628.92
  6. Step 6: Final answer
    x = 453,989.70

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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.