Home / 497,948.58-687,227.13-283,120.83

Finding the Fourth Proportional to 497,948.58, 687,227.13 and 283,120.83

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Solution

The fourth proportional to 497,948.58, 687,227.13 and 283,120.83 is: 390,739.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,948.58 : 687,227.13 = 283,120.83 : x
  2. Step 2: Convert to fraction form
    497,948.58/687,227.13 = 283,120.83/x
  3. Step 3: Cross multiply
    497,948.58x = 687,227.13 × 283,120.83
  4. Step 4: Simplify right side
    497,948.58x = 194,568,315,444.12
  5. Step 5: Solve for x
    x = 194,568,315,444.12/497,948.58
  6. Step 6: Final answer
    x = 390,739.77

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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.