Home / 890,516.70-1,228,913.78-522,922.10

Finding the Fourth Proportional to 890,516.70, 1,228,913.78 and 522,922.10

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Solution

The fourth proportional to 890,516.70, 1,228,913.78 and 522,922.10 is: 721,632.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,516.70 : 1,228,913.78 = 522,922.10 : x
  2. Step 2: Convert to fraction form
    890,516.70/1,228,913.78 = 522,922.10/x
  3. Step 3: Cross multiply
    890,516.70x = 1,228,913.78 × 522,922.10
  4. Step 4: Simplify right side
    890,516.70x = 642,626,165,797.36
  5. Step 5: Solve for x
    x = 642,626,165,797.36/890,516.70
  6. Step 6: Final answer
    x = 721,632.92

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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.