Home / 653,243.37-979,483.60-253,416.91

Finding the Fourth Proportional to 653,243.37, 979,483.60 and 253,416.91

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Solution

The fourth proportional to 653,243.37, 979,483.60 and 253,416.91 is: 379,977.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,243.37 : 979,483.60 = 253,416.91 : x
  2. Step 2: Convert to fraction form
    653,243.37/979,483.60 = 253,416.91/x
  3. Step 3: Cross multiply
    653,243.37x = 979,483.60 × 253,416.91
  4. Step 4: Simplify right side
    653,243.37x = 248,217,707,307.68
  5. Step 5: Solve for x
    x = 248,217,707,307.68/653,243.37
  6. Step 6: Final answer
    x = 379,977.38

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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.