Home / 859,042.20-1,288,563.30-839,359.20

Finding the Fourth Proportional to 859,042.20, 1,288,563.30 and 839,359.20

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Solution

The fourth proportional to 859,042.20, 1,288,563.30 and 839,359.20 is: 1,259,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,042.20 : 1,288,563.30 = 839,359.20 : x
  2. Step 2: Convert to fraction form
    859,042.20/1,288,563.30 = 839,359.20/x
  3. Step 3: Cross multiply
    859,042.20x = 1,288,563.30 × 839,359.20
  4. Step 4: Simplify right side
    859,042.20x = 1,081,567,460,637.36
  5. Step 5: Solve for x
    x = 1,081,567,460,637.36/859,042.20
  6. Step 6: Final answer
    x = 1,259,038.80

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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.