Home / 726,013.06-1,001,922.21-399,339.86

Finding the Fourth Proportional to 726,013.06, 1,001,922.21 and 399,339.86

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Solution

The fourth proportional to 726,013.06, 1,001,922.21 and 399,339.86 is: 551,102.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,013.06 : 1,001,922.21 = 399,339.86 : x
  2. Step 2: Convert to fraction form
    726,013.06/1,001,922.21 = 399,339.86/x
  3. Step 3: Cross multiply
    726,013.06x = 1,001,922.21 × 399,339.86
  4. Step 4: Simplify right side
    726,013.06x = 400,107,470,062.68
  5. Step 5: Solve for x
    x = 400,107,470,062.68/726,013.06
  6. Step 6: Final answer
    x = 551,102.31

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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.