Home / 1,123,622.45-1,685,433.68-745,708.85

Finding the Fourth Proportional to 1,123,622.45, 1,685,433.68 and 745,708.85

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Solution

The fourth proportional to 1,123,622.45, 1,685,433.68 and 745,708.85 is: 1,118,563.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,622.45 : 1,685,433.68 = 745,708.85 : x
  2. Step 2: Convert to fraction form
    1,123,622.45/1,685,433.68 = 745,708.85/x
  3. Step 3: Cross multiply
    1,123,622.45x = 1,685,433.68 × 745,708.85
  4. Step 4: Simplify right side
    1,123,622.45x = 1,256,842,807,535.52
  5. Step 5: Solve for x
    x = 1,256,842,807,535.52/1,123,622.45
  6. Step 6: Final answer
    x = 1,118,563.28

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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.