Home / 646,639.75-892,205.49-425,854.24

Finding the Fourth Proportional to 646,639.75, 892,205.49 and 425,854.24

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Solution

The fourth proportional to 646,639.75, 892,205.49 and 425,854.24 is: 587,575.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,639.75 : 892,205.49 = 425,854.24 : x
  2. Step 2: Convert to fraction form
    646,639.75/892,205.49 = 425,854.24/x
  3. Step 3: Cross multiply
    646,639.75x = 892,205.49 × 425,854.24
  4. Step 4: Simplify right side
    646,639.75x = 379,949,490,867.78
  5. Step 5: Solve for x
    x = 379,949,490,867.78/646,639.75
  6. Step 6: Final answer
    x = 587,575.22

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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.