Home / 672,779.48-1,009,335.28-199,464.84

Finding the Fourth Proportional to 672,779.48, 1,009,335.28 and 199,464.84

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Solution

The fourth proportional to 672,779.48, 1,009,335.28 and 199,464.84 is: 299,246.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,779.48 : 1,009,335.28 = 199,464.84 : x
  2. Step 2: Convert to fraction form
    672,779.48/1,009,335.28 = 199,464.84/x
  3. Step 3: Cross multiply
    672,779.48x = 1,009,335.28 × 199,464.84
  4. Step 4: Simplify right side
    672,779.48x = 201,326,900,131.56
  5. Step 5: Solve for x
    x = 201,326,900,131.56/672,779.48
  6. Step 6: Final answer
    x = 299,246.49

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.