Home / 1,660,779.80-2,491,040.10-649,705.40

Finding the Fourth Proportional to 1,660,779.80, 2,491,040.10 and 649,705.40

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Solution

The fourth proportional to 1,660,779.80, 2,491,040.10 and 649,705.40 is: 974,507.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,779.80 : 2,491,040.10 = 649,705.40 : x
  2. Step 2: Convert to fraction form
    1,660,779.80/2,491,040.10 = 649,705.40/x
  3. Step 3: Cross multiply
    1,660,779.80x = 2,491,040.10 × 649,705.40
  4. Step 4: Simplify right side
    1,660,779.80x = 1,618,442,204,586.54
  5. Step 5: Solve for x
    x = 1,618,442,204,586.54/1,660,779.80
  6. Step 6: Final answer
    x = 974,507.40

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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.