Home / 1,130,789.45-1,560,471.31-621,480.89

Finding the Fourth Proportional to 1,130,789.45, 1,560,471.31 and 621,480.89

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Solution

The fourth proportional to 1,130,789.45, 1,560,471.31 and 621,480.89 is: 857,633.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,789.45 : 1,560,471.31 = 621,480.89 : x
  2. Step 2: Convert to fraction form
    1,130,789.45/1,560,471.31 = 621,480.89/x
  3. Step 3: Cross multiply
    1,130,789.45x = 1,560,471.31 × 621,480.89
  4. Step 4: Simplify right side
    1,130,789.45x = 969,803,098,558.27
  5. Step 5: Solve for x
    x = 969,803,098,558.27/1,130,789.45
  6. Step 6: Final answer
    x = 857,633.66

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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.