Home / 812,305.50-1,120,826.07-525,785.82

Finding the Fourth Proportional to 812,305.50, 1,120,826.07 and 525,785.82

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Solution

The fourth proportional to 812,305.50, 1,120,826.07 and 525,785.82 is: 725,483.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,305.50 : 1,120,826.07 = 525,785.82 : x
  2. Step 2: Convert to fraction form
    812,305.50/1,120,826.07 = 525,785.82/x
  3. Step 3: Cross multiply
    812,305.50x = 1,120,826.07 × 525,785.82
  4. Step 4: Simplify right side
    812,305.50x = 589,314,454,292.33
  5. Step 5: Solve for x
    x = 589,314,454,292.33/812,305.50
  6. Step 6: Final answer
    x = 725,483.77

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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.