Home / 1,880,617.32-2,821,122.81-618,543.36

Finding the Fourth Proportional to 1,880,617.32, 2,821,122.81 and 618,543.36

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Solution

The fourth proportional to 1,880,617.32, 2,821,122.81 and 618,543.36 is: 927,879.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880,617.32 : 2,821,122.81 = 618,543.36 : x
  2. Step 2: Convert to fraction form
    1,880,617.32/2,821,122.81 = 618,543.36/x
  3. Step 3: Cross multiply
    1,880,617.32x = 2,821,122.81 × 618,543.36
  4. Step 4: Simplify right side
    1,880,617.32x = 1,744,986,781,870.04
  5. Step 5: Solve for x
    x = 1,744,986,781,870.04/1,880,617.32
  6. Step 6: Final answer
    x = 927,879.78

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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.