Home / 1,296,220.80-1,944,331.20-764,779.80

Finding the Fourth Proportional to 1,296,220.80, 1,944,331.20 and 764,779.80

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Solution

The fourth proportional to 1,296,220.80, 1,944,331.20 and 764,779.80 is: 1,147,169.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,220.80 : 1,944,331.20 = 764,779.80 : x
  2. Step 2: Convert to fraction form
    1,296,220.80/1,944,331.20 = 764,779.80/x
  3. Step 3: Cross multiply
    1,296,220.80x = 1,944,331.20 × 764,779.80
  4. Step 4: Simplify right side
    1,296,220.80x = 1,486,985,226,269.76
  5. Step 5: Solve for x
    x = 1,486,985,226,269.76/1,296,220.80
  6. Step 6: Final answer
    x = 1,147,169.70

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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.