Home / 726,702.79-1,002,835.86-404,412.43

Finding the Fourth Proportional to 726,702.79, 1,002,835.86 and 404,412.43

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Solution

The fourth proportional to 726,702.79, 1,002,835.86 and 404,412.43 is: 558,081.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,702.79 : 1,002,835.86 = 404,412.43 : x
  2. Step 2: Convert to fraction form
    726,702.79/1,002,835.86 = 404,412.43/x
  3. Step 3: Cross multiply
    726,702.79x = 1,002,835.86 × 404,412.43
  4. Step 4: Simplify right side
    726,702.79x = 405,559,287,033.74
  5. Step 5: Solve for x
    x = 405,559,287,033.74/726,702.79
  6. Step 6: Final answer
    x = 558,081.37

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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.