Home / 1,425,390.87-1,967,039.76-780,833.98

Finding the Fourth Proportional to 1,425,390.87, 1,967,039.76 and 780,833.98

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Solution

The fourth proportional to 1,425,390.87, 1,967,039.76 and 780,833.98 is: 1,077,551.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,390.87 : 1,967,039.76 = 780,833.98 : x
  2. Step 2: Convert to fraction form
    1,425,390.87/1,967,039.76 = 780,833.98/x
  3. Step 3: Cross multiply
    1,425,390.87x = 1,967,039.76 × 780,833.98
  4. Step 4: Simplify right side
    1,425,390.87x = 1,535,931,485,613.78
  5. Step 5: Solve for x
    x = 1,535,931,485,613.78/1,425,390.87
  6. Step 6: Final answer
    x = 1,077,551.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.