Home / 851,387.46-1,174,922.64-469,427.82

Finding the Fourth Proportional to 851,387.46, 1,174,922.64 and 469,427.82

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Solution

The fourth proportional to 851,387.46, 1,174,922.64 and 469,427.82 is: 647,814.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,387.46 : 1,174,922.64 = 469,427.82 : x
  2. Step 2: Convert to fraction form
    851,387.46/1,174,922.64 = 469,427.82/x
  3. Step 3: Cross multiply
    851,387.46x = 1,174,922.64 × 469,427.82
  4. Step 4: Simplify right side
    851,387.46x = 551,541,373,563.85
  5. Step 5: Solve for x
    x = 551,541,373,563.85/851,387.46
  6. Step 6: Final answer
    x = 647,814.77

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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.