Home / 1,030,332.06-1,420,622.55-667,623.54

Finding the Fourth Proportional to 1,030,332.06, 1,420,622.55 and 667,623.54

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Solution

The fourth proportional to 1,030,332.06, 1,420,622.55 and 667,623.54 is: 920,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,332.06 : 1,420,622.55 = 667,623.54 : x
  2. Step 2: Convert to fraction form
    1,030,332.06/1,420,622.55 = 667,623.54/x
  3. Step 3: Cross multiply
    1,030,332.06x = 1,420,622.55 × 667,623.54
  4. Step 4: Simplify right side
    1,030,332.06x = 948,441,055,834.83
  5. Step 5: Solve for x
    x = 948,441,055,834.83/1,030,332.06
  6. Step 6: Final answer
    x = 920,519.79

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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.