Home / 1,938,740.92-2,675,376.14-1,111,221.28

Finding the Fourth Proportional to 1,938,740.92, 2,675,376.14 and 1,111,221.28

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Solution

The fourth proportional to 1,938,740.92, 2,675,376.14 and 1,111,221.28 is: 1,533,435.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,740.92 : 2,675,376.14 = 1,111,221.28 : x
  2. Step 2: Convert to fraction form
    1,938,740.92/2,675,376.14 = 1,111,221.28/x
  3. Step 3: Cross multiply
    1,938,740.92x = 2,675,376.14 × 1,111,221.28
  4. Step 4: Simplify right side
    1,938,740.92x = 2,972,934,898,772.26
  5. Step 5: Solve for x
    x = 2,972,934,898,772.26/1,938,740.92
  6. Step 6: Final answer
    x = 1,533,435.89

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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.