Home / 811,062.88-1,118,817.84-471,493.60

Finding the Fourth Proportional to 811,062.88, 1,118,817.84 and 471,493.60

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Solution

The fourth proportional to 811,062.88, 1,118,817.84 and 471,493.60 is: 650,400.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,062.88 : 1,118,817.84 = 471,493.60 : x
  2. Step 2: Convert to fraction form
    811,062.88/1,118,817.84 = 471,493.60/x
  3. Step 3: Cross multiply
    811,062.88x = 1,118,817.84 × 471,493.60
  4. Step 4: Simplify right side
    811,062.88x = 527,515,451,125.82
  5. Step 5: Solve for x
    x = 527,515,451,125.82/811,062.88
  6. Step 6: Final answer
    x = 650,400.19

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Double scale
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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.