Home / 1,188,008.20-1,779,938.70-1,022,120.20

Finding the Fourth Proportional to 1,188,008.20, 1,779,938.70 and 1,022,120.20

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Solution

The fourth proportional to 1,188,008.20, 1,779,938.70 and 1,022,120.20 is: 1,531,396.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,008.20 : 1,779,938.70 = 1,022,120.20 : x
  2. Step 2: Convert to fraction form
    1,188,008.20/1,779,938.70 = 1,022,120.20/x
  3. Step 3: Cross multiply
    1,188,008.20x = 1,779,938.70 × 1,022,120.20
  4. Step 4: Simplify right side
    1,188,008.20x = 1,819,311,300,031.74
  5. Step 5: Solve for x
    x = 1,819,311,300,031.74/1,188,008.20
  6. Step 6: Final answer
    x = 1,531,396.25

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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.