Home / 851,490.83-1,173,836.61-669,887.82

Finding the Fourth Proportional to 851,490.83, 1,173,836.61 and 669,887.82

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Solution

The fourth proportional to 851,490.83, 1,173,836.61 and 669,887.82 is: 923,484.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,490.83 : 1,173,836.61 = 669,887.82 : x
  2. Step 2: Convert to fraction form
    851,490.83/1,173,836.61 = 669,887.82/x
  3. Step 3: Cross multiply
    851,490.83x = 1,173,836.61 × 669,887.82
  4. Step 4: Simplify right side
    851,490.83x = 786,338,847,709.09
  5. Step 5: Solve for x
    x = 786,338,847,709.09/851,490.83
  6. Step 6: Final answer
    x = 923,484.81

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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.