Home / 653,246.76-979,488.80-253,420.36

Finding the Fourth Proportional to 653,246.76, 979,488.80 and 253,420.36

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Solution

The fourth proportional to 653,246.76, 979,488.80 and 253,420.36 is: 379,982.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,246.76 : 979,488.80 = 253,420.36 : x
  2. Step 2: Convert to fraction form
    653,246.76/979,488.80 = 253,420.36/x
  3. Step 3: Cross multiply
    653,246.76x = 979,488.80 × 253,420.36
  4. Step 4: Simplify right side
    653,246.76x = 248,222,404,311.97
  5. Step 5: Solve for x
    x = 248,222,404,311.97/653,246.76
  6. Step 6: Final answer
    x = 379,982.60

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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.