Home / 1,125,395.95-1,553,194.25-641,850.25

Finding the Fourth Proportional to 1,125,395.95, 1,553,194.25 and 641,850.25

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Solution

The fourth proportional to 1,125,395.95, 1,553,194.25 and 641,850.25 is: 885,837.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,395.95 : 1,553,194.25 = 641,850.25 : x
  2. Step 2: Convert to fraction form
    1,125,395.95/1,553,194.25 = 641,850.25/x
  3. Step 3: Cross multiply
    1,125,395.95x = 1,553,194.25 × 641,850.25
  4. Step 4: Simplify right side
    1,125,395.95x = 996,918,112,975.76
  5. Step 5: Solve for x
    x = 996,918,112,975.76/1,125,395.95
  6. Step 6: Final answer
    x = 885,837.66

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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.