Home / 979,837.61-1,469,378.48-380,719.89

Finding the Fourth Proportional to 979,837.61, 1,469,378.48 and 380,719.89

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Solution

The fourth proportional to 979,837.61, 1,469,378.48 and 380,719.89 is: 570,932.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,837.61 : 1,469,378.48 = 380,719.89 : x
  2. Step 2: Convert to fraction form
    979,837.61/1,469,378.48 = 380,719.89/x
  3. Step 3: Cross multiply
    979,837.61x = 1,469,378.48 × 380,719.89
  4. Step 4: Simplify right side
    979,837.61x = 559,421,611,370.37
  5. Step 5: Solve for x
    x = 559,421,611,370.37/979,837.61
  6. Step 6: Final answer
    x = 570,932.99

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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.