Home / 1,238,531.51-1,856,039.47-518,096.79

Finding the Fourth Proportional to 1,238,531.51, 1,856,039.47 and 518,096.79

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Solution

The fourth proportional to 1,238,531.51, 1,856,039.47 and 518,096.79 is: 776,409.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,531.51 : 1,856,039.47 = 518,096.79 : x
  2. Step 2: Convert to fraction form
    1,238,531.51/1,856,039.47 = 518,096.79/x
  3. Step 3: Cross multiply
    1,238,531.51x = 1,856,039.47 × 518,096.79
  4. Step 4: Simplify right side
    1,238,531.51x = 961,608,090,225.06
  5. Step 5: Solve for x
    x = 961,608,090,225.06/1,238,531.51
  6. Step 6: Final answer
    x = 776,409.87

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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.