Home / 491,010.12-677,687.02-307,333.88

Finding the Fourth Proportional to 491,010.12, 677,687.02 and 307,333.88

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Solution

The fourth proportional to 491,010.12, 677,687.02 and 307,333.88 is: 424,179.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,010.12 : 677,687.02 = 307,333.88 : x
  2. Step 2: Convert to fraction form
    491,010.12/677,687.02 = 307,333.88/x
  3. Step 3: Cross multiply
    491,010.12x = 677,687.02 × 307,333.88
  4. Step 4: Simplify right side
    491,010.12x = 208,276,181,282.24
  5. Step 5: Solve for x
    x = 208,276,181,282.24/491,010.12
  6. Step 6: Final answer
    x = 424,179.00

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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.