Home / 1,777,427.80-2,666,141.70-780,155.80

Finding the Fourth Proportional to 1,777,427.80, 2,666,141.70 and 780,155.80

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Solution

The fourth proportional to 1,777,427.80, 2,666,141.70 and 780,155.80 is: 1,170,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777,427.80 : 2,666,141.70 = 780,155.80 : x
  2. Step 2: Convert to fraction form
    1,777,427.80/2,666,141.70 = 780,155.80/x
  3. Step 3: Cross multiply
    1,777,427.80x = 2,666,141.70 × 780,155.80
  4. Step 4: Simplify right side
    1,777,427.80x = 2,080,005,910,876.86
  5. Step 5: Solve for x
    x = 2,080,005,910,876.86/1,777,427.80
  6. Step 6: Final answer
    x = 1,170,233.70

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1.5x scale

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.