Home / 1,660,629.80-2,490,215.70-761,772.80

Finding the Fourth Proportional to 1,660,629.80, 2,490,215.70 and 761,772.80

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Solution

The fourth proportional to 1,660,629.80, 2,490,215.70 and 761,772.80 is: 1,142,324.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,629.80 : 2,490,215.70 = 761,772.80 : x
  2. Step 2: Convert to fraction form
    1,660,629.80/2,490,215.70 = 761,772.80/x
  3. Step 3: Cross multiply
    1,660,629.80x = 2,490,215.70 × 761,772.80
  4. Step 4: Simplify right side
    1,660,629.80x = 1,896,978,586,392.96
  5. Step 5: Solve for x
    x = 1,896,978,586,392.96/1,660,629.80
  6. Step 6: Final answer
    x = 1,142,324.79

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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.