Home / 851,382.15-1,173,686.59-669,778.66

Finding the Fourth Proportional to 851,382.15, 1,173,686.59 and 669,778.66

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Solution

The fourth proportional to 851,382.15, 1,173,686.59 and 669,778.66 is: 923,334.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,382.15 : 1,173,686.59 = 669,778.66 : x
  2. Step 2: Convert to fraction form
    851,382.15/1,173,686.59 = 669,778.66/x
  3. Step 3: Cross multiply
    851,382.15x = 1,173,686.59 × 669,778.66
  4. Step 4: Simplify right side
    851,382.15x = 786,110,231,510.17
  5. Step 5: Solve for x
    x = 786,110,231,510.17/851,382.15
  6. Step 6: Final answer
    x = 923,334.17

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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.