Home / 660,826.22-911,985.30-374,348.66

Finding the Fourth Proportional to 660,826.22, 911,985.30 and 374,348.66

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Solution

The fourth proportional to 660,826.22, 911,985.30 and 374,348.66 is: 516,626.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,826.22 : 911,985.30 = 374,348.66 : x
  2. Step 2: Convert to fraction form
    660,826.22/911,985.30 = 374,348.66/x
  3. Step 3: Cross multiply
    660,826.22x = 911,985.30 × 374,348.66
  4. Step 4: Simplify right side
    660,826.22x = 341,400,470,434.77
  5. Step 5: Solve for x
    x = 341,400,470,434.77/660,826.22
  6. Step 6: Final answer
    x = 516,626.71

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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.