Home / 453,749.58-679,435.29-319,905.18

Finding the Fourth Proportional to 453,749.58, 679,435.29 and 319,905.18

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Solution

The fourth proportional to 453,749.58, 679,435.29 and 319,905.18 is: 479,019.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,749.58 : 679,435.29 = 319,905.18 : x
  2. Step 2: Convert to fraction form
    453,749.58/679,435.29 = 319,905.18/x
  3. Step 3: Cross multiply
    453,749.58x = 679,435.29 × 319,905.18
  4. Step 4: Simplify right side
    453,749.58x = 217,354,868,745.80
  5. Step 5: Solve for x
    x = 217,354,868,745.80/453,749.58
  6. Step 6: Final answer
    x = 479,019.44

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1.5x scale

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.