Home / 858,822.40-1,285,609.20-858,822.40

Finding the Fourth Proportional to 858,822.40, 1,285,609.20 and 858,822.40

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Solution

The fourth proportional to 858,822.40, 1,285,609.20 and 858,822.40 is: 1,285,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,822.40 : 1,285,609.20 = 858,822.40 : x
  2. Step 2: Convert to fraction form
    858,822.40/1,285,609.20 = 858,822.40/x
  3. Step 3: Cross multiply
    858,822.40x = 1,285,609.20 × 858,822.40
  4. Step 4: Simplify right side
    858,822.40x = 1,104,109,978,606.08
  5. Step 5: Solve for x
    x = 1,104,109,978,606.08/858,822.40
  6. Step 6: Final answer
    x = 1,285,609.20

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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.