Home / 857,139.36-1,285,923.30-604,912.20

Finding the Fourth Proportional to 857,139.36, 1,285,923.30 and 604,912.20

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Solution

The fourth proportional to 857,139.36, 1,285,923.30 and 604,912.20 is: 907,519.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,139.36 : 1,285,923.30 = 604,912.20 : x
  2. Step 2: Convert to fraction form
    857,139.36/1,285,923.30 = 604,912.20/x
  3. Step 3: Cross multiply
    857,139.36x = 1,285,923.30 × 604,912.20
  4. Step 4: Simplify right side
    857,139.36x = 777,870,692,434.26
  5. Step 5: Solve for x
    x = 777,870,692,434.26/857,139.36
  6. Step 6: Final answer
    x = 907,519.51

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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.