Home / 1,123,812.90-1,685,438.77-440,838.57

Finding the Fourth Proportional to 1,123,812.90, 1,685,438.77 and 440,838.57

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Solution

The fourth proportional to 1,123,812.90, 1,685,438.77 and 440,838.57 is: 661,147.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,812.90 : 1,685,438.77 = 440,838.57 : x
  2. Step 2: Convert to fraction form
    1,123,812.90/1,685,438.77 = 440,838.57/x
  3. Step 3: Cross multiply
    1,123,812.90x = 1,685,438.77 × 440,838.57
  4. Step 4: Simplify right side
    1,123,812.90x = 743,006,417,189.36
  5. Step 5: Solve for x
    x = 743,006,417,189.36/1,123,812.90
  6. Step 6: Final answer
    x = 661,147.79

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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.