Home / 1,071,129.72-1,606,717.80-388,077.51

Finding the Fourth Proportional to 1,071,129.72, 1,606,717.80 and 388,077.51

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Solution

The fourth proportional to 1,071,129.72, 1,606,717.80 and 388,077.51 is: 582,124.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,129.72 : 1,606,717.80 = 388,077.51 : x
  2. Step 2: Convert to fraction form
    1,071,129.72/1,606,717.80 = 388,077.51/x
  3. Step 3: Cross multiply
    1,071,129.72x = 1,606,717.80 × 388,077.51
  4. Step 4: Simplify right side
    1,071,129.72x = 623,531,043,096.68
  5. Step 5: Solve for x
    x = 623,531,043,096.68/1,071,129.72
  6. Step 6: Final answer
    x = 582,124.68

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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.