Home / 858,803.20-1,288,204.80-703,283.20

Finding the Fourth Proportional to 858,803.20, 1,288,204.80 and 703,283.20

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Solution

The fourth proportional to 858,803.20, 1,288,204.80 and 703,283.20 is: 1,054,924.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,803.20 : 1,288,204.80 = 703,283.20 : x
  2. Step 2: Convert to fraction form
    858,803.20/1,288,204.80 = 703,283.20/x
  3. Step 3: Cross multiply
    858,803.20x = 1,288,204.80 × 703,283.20
  4. Step 4: Simplify right side
    858,803.20x = 905,972,793,999.36
  5. Step 5: Solve for x
    x = 905,972,793,999.36/858,803.20
  6. Step 6: Final answer
    x = 1,054,924.80

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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.