Home / 726,704.40-1,002,838.55-404,411.48

Finding the Fourth Proportional to 726,704.40, 1,002,838.55 and 404,411.48

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Solution

The fourth proportional to 726,704.40, 1,002,838.55 and 404,411.48 is: 558,080.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,704.40 : 1,002,838.55 = 404,411.48 : x
  2. Step 2: Convert to fraction form
    726,704.40/1,002,838.55 = 404,411.48/x
  3. Step 3: Cross multiply
    726,704.40x = 1,002,838.55 × 404,411.48
  4. Step 4: Simplify right side
    726,704.40x = 405,559,415,170.30
  5. Step 5: Solve for x
    x = 405,559,415,170.30/726,704.40
  6. Step 6: Final answer
    x = 558,080.31

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1.5x scale

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.