Home / 389,926.26-584,889.36-212,582.40

Finding the Fourth Proportional to 389,926.26, 584,889.36 and 212,582.40

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Solution

The fourth proportional to 389,926.26, 584,889.36 and 212,582.40 is: 318,873.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,926.26 : 584,889.36 = 212,582.40 : x
  2. Step 2: Convert to fraction form
    389,926.26/584,889.36 = 212,582.40/x
  3. Step 3: Cross multiply
    389,926.26x = 584,889.36 × 212,582.40
  4. Step 4: Simplify right side
    389,926.26x = 124,337,183,883.26
  5. Step 5: Solve for x
    x = 124,337,183,883.26/389,926.26
  6. Step 6: Final answer
    x = 318,873.58

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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.