Home / 1,243,727.27-1,865,916.71-390,764.45

Finding the Fourth Proportional to 1,243,727.27, 1,865,916.71 and 390,764.45

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Solution

The fourth proportional to 1,243,727.27, 1,865,916.71 and 390,764.45 is: 586,249.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,727.27 : 1,865,916.71 = 390,764.45 : x
  2. Step 2: Convert to fraction form
    1,243,727.27/1,865,916.71 = 390,764.45/x
  3. Step 3: Cross multiply
    1,243,727.27x = 1,865,916.71 × 390,764.45
  4. Step 4: Simplify right side
    1,243,727.27x = 729,133,914,975.14
  5. Step 5: Solve for x
    x = 729,133,914,975.14/1,243,727.27
  6. Step 6: Final answer
    x = 586,249.04

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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.