Home / 1,775,790.80-2,663,686.20-778,518.80

Finding the Fourth Proportional to 1,775,790.80, 2,663,686.20 and 778,518.80

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Solution

The fourth proportional to 1,775,790.80, 2,663,686.20 and 778,518.80 is: 1,167,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775,790.80 : 2,663,686.20 = 778,518.80 : x
  2. Step 2: Convert to fraction form
    1,775,790.80/2,663,686.20 = 778,518.80/x
  3. Step 3: Cross multiply
    1,775,790.80x = 2,663,686.20 × 778,518.80
  4. Step 4: Simplify right side
    1,775,790.80x = 2,073,729,784,000.56
  5. Step 5: Solve for x
    x = 2,073,729,784,000.56/1,775,790.80
  6. Step 6: Final answer
    x = 1,167,778.20

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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.