Home / 728,320.41-1,092,480.62-307,599.93

Finding the Fourth Proportional to 728,320.41, 1,092,480.62 and 307,599.93

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Solution

The fourth proportional to 728,320.41, 1,092,480.62 and 307,599.93 is: 461,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,320.41 : 1,092,480.62 = 307,599.93 : x
  2. Step 2: Convert to fraction form
    728,320.41/1,092,480.62 = 307,599.93/x
  3. Step 3: Cross multiply
    728,320.41x = 1,092,480.62 × 307,599.93
  4. Step 4: Simplify right side
    728,320.41x = 336,046,960,700.36
  5. Step 5: Solve for x
    x = 336,046,960,700.36/728,320.41
  6. Step 6: Final answer
    x = 461,399.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.