Home / 726,495.27-1,002,547.83-420,584.59

Finding the Fourth Proportional to 726,495.27, 1,002,547.83 and 420,584.59

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Solution

The fourth proportional to 726,495.27, 1,002,547.83 and 420,584.59 is: 580,397.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,495.27 : 1,002,547.83 = 420,584.59 : x
  2. Step 2: Convert to fraction form
    726,495.27/1,002,547.83 = 420,584.59/x
  3. Step 3: Cross multiply
    726,495.27x = 1,002,547.83 × 420,584.59
  4. Step 4: Simplify right side
    726,495.27x = 421,656,168,035.94
  5. Step 5: Solve for x
    x = 421,656,168,035.94/726,495.27
  6. Step 6: Final answer
    x = 580,397.68

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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.