Home / 1,660,576.80-2,490,136.20-761,719.80

Finding the Fourth Proportional to 1,660,576.80, 2,490,136.20 and 761,719.80

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Solution

The fourth proportional to 1,660,576.80, 2,490,136.20 and 761,719.80 is: 1,142,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,576.80 : 2,490,136.20 = 761,719.80 : x
  2. Step 2: Convert to fraction form
    1,660,576.80/2,490,136.20 = 761,719.80/x
  3. Step 3: Cross multiply
    1,660,576.80x = 2,490,136.20 × 761,719.80
  4. Step 4: Simplify right side
    1,660,576.80x = 1,896,786,048,236.76
  5. Step 5: Solve for x
    x = 1,896,786,048,236.76/1,660,576.80
  6. Step 6: Final answer
    x = 1,142,245.30

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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.