Home / 1,077,721.40-1,618,331.70-605,329.40

Finding the Fourth Proportional to 1,077,721.40, 1,618,331.70 and 605,329.40

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Solution

The fourth proportional to 1,077,721.40, 1,618,331.70 and 605,329.40 is: 908,976.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,721.40 : 1,618,331.70 = 605,329.40 : x
  2. Step 2: Convert to fraction form
    1,077,721.40/1,618,331.70 = 605,329.40/x
  3. Step 3: Cross multiply
    1,077,721.40x = 1,618,331.70 × 605,329.40
  4. Step 4: Simplify right side
    1,077,721.40x = 979,623,756,961.98
  5. Step 5: Solve for x
    x = 979,623,756,961.98/1,077,721.40
  6. Step 6: Final answer
    x = 908,976.81

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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.