Home / 1,321,326.72-1,981,989.36-374,705.28

Finding the Fourth Proportional to 1,321,326.72, 1,981,989.36 and 374,705.28

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Solution

The fourth proportional to 1,321,326.72, 1,981,989.36 and 374,705.28 is: 562,057.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,326.72 : 1,981,989.36 = 374,705.28 : x
  2. Step 2: Convert to fraction form
    1,321,326.72/1,981,989.36 = 374,705.28/x
  3. Step 3: Cross multiply
    1,321,326.72x = 1,981,989.36 × 374,705.28
  4. Step 4: Simplify right side
    1,321,326.72x = 742,661,878,095.82
  5. Step 5: Solve for x
    x = 742,661,878,095.82/1,321,326.72
  6. Step 6: Final answer
    x = 562,057.72

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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.