Home / 1,123,812.65-1,685,438.39-440,838.32

Finding the Fourth Proportional to 1,123,812.65, 1,685,438.39 and 440,838.32

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Solution

The fourth proportional to 1,123,812.65, 1,685,438.39 and 440,838.32 is: 661,147.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,812.65 : 1,685,438.39 = 440,838.32 : x
  2. Step 2: Convert to fraction form
    1,123,812.65/1,685,438.39 = 440,838.32/x
  3. Step 3: Cross multiply
    1,123,812.65x = 1,685,438.39 × 440,838.32
  4. Step 4: Simplify right side
    1,123,812.65x = 743,005,833,626.80
  5. Step 5: Solve for x
    x = 743,005,833,626.80/1,123,812.65
  6. Step 6: Final answer
    x = 661,147.42

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1.5x scale

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.