Home / 1,363,221.78-1,881,386.02-819,533.58

Finding the Fourth Proportional to 1,363,221.78, 1,881,386.02 and 819,533.58

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Solution

The fourth proportional to 1,363,221.78, 1,881,386.02 and 819,533.58 is: 1,131,040.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363,221.78 : 1,881,386.02 = 819,533.58 : x
  2. Step 2: Convert to fraction form
    1,363,221.78/1,881,386.02 = 819,533.58/x
  3. Step 3: Cross multiply
    1,363,221.78x = 1,881,386.02 × 819,533.58
  4. Step 4: Simplify right side
    1,363,221.78x = 1,541,859,008,876.79
  5. Step 5: Solve for x
    x = 1,541,859,008,876.79/1,363,221.78
  6. Step 6: Final answer
    x = 1,131,040.48

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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.