Home / 1,775,784.80-2,663,677.20-778,512.80

Finding the Fourth Proportional to 1,775,784.80, 2,663,677.20 and 778,512.80

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Solution

The fourth proportional to 1,775,784.80, 2,663,677.20 and 778,512.80 is: 1,167,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775,784.80 : 2,663,677.20 = 778,512.80 : x
  2. Step 2: Convert to fraction form
    1,775,784.80/2,663,677.20 = 778,512.80/x
  3. Step 3: Cross multiply
    1,775,784.80x = 2,663,677.20 × 778,512.80
  4. Step 4: Simplify right side
    1,775,784.80x = 2,073,706,795,268.16
  5. Step 5: Solve for x
    x = 2,073,706,795,268.16/1,775,784.80
  6. Step 6: Final answer
    x = 1,167,769.20

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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.