Home / 653,467.20-979,682.40-357,979.20

Finding the Fourth Proportional to 653,467.20, 979,682.40 and 357,979.20

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Solution

The fourth proportional to 653,467.20, 979,682.40 and 357,979.20 is: 536,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,467.20 : 979,682.40 = 357,979.20 : x
  2. Step 2: Convert to fraction form
    653,467.20/979,682.40 = 357,979.20/x
  3. Step 3: Cross multiply
    653,467.20x = 979,682.40 × 357,979.20
  4. Step 4: Simplify right side
    653,467.20x = 350,705,921,806.08
  5. Step 5: Solve for x
    x = 350,705,921,806.08/653,467.20
  6. Step 6: Final answer
    x = 536,684.81

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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.