Home / 646,640.25-892,206.18-425,854.74

Finding the Fourth Proportional to 646,640.25, 892,206.18 and 425,854.74

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Solution

The fourth proportional to 646,640.25, 892,206.18 and 425,854.74 is: 587,575.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,640.25 : 892,206.18 = 425,854.74 : x
  2. Step 2: Convert to fraction form
    646,640.25/892,206.18 = 425,854.74/x
  3. Step 3: Cross multiply
    646,640.25x = 892,206.18 × 425,854.74
  4. Step 4: Simplify right side
    646,640.25x = 379,950,230,810.29
  5. Step 5: Solve for x
    x = 379,950,230,810.29/646,640.25
  6. Step 6: Final answer
    x = 587,575.91

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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.