Home / 725,880.15-1,001,426.91-419,899.77

Finding the Fourth Proportional to 725,880.15, 1,001,426.91 and 419,899.77

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Solution

The fourth proportional to 725,880.15, 1,001,426.91 and 419,899.77 is: 579,295.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,880.15 : 1,001,426.91 = 419,899.77 : x
  2. Step 2: Convert to fraction form
    725,880.15/1,001,426.91 = 419,899.77/x
  3. Step 3: Cross multiply
    725,880.15x = 1,001,426.91 × 419,899.77
  4. Step 4: Simplify right side
    725,880.15x = 420,498,929,180.81
  5. Step 5: Solve for x
    x = 420,498,929,180.81/725,880.15
  6. Step 6: Final answer
    x = 579,295.26

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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.