Home / 1,082,642.76-1,624,128.12-785,366.55

Finding the Fourth Proportional to 1,082,642.76, 1,624,128.12 and 785,366.55

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Solution

The fourth proportional to 1,082,642.76, 1,624,128.12 and 785,366.55 is: 1,178,168.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,082,642.76 : 1,624,128.12 = 785,366.55 : x
  2. Step 2: Convert to fraction form
    1,082,642.76/1,624,128.12 = 785,366.55/x
  3. Step 3: Cross multiply
    1,082,642.76x = 1,624,128.12 × 785,366.55
  4. Step 4: Simplify right side
    1,082,642.76x = 1,275,535,898,362.39
  5. Step 5: Solve for x
    x = 1,275,535,898,362.39/1,082,642.76
  6. Step 6: Final answer
    x = 1,178,168.78

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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.