Home / 979,679.54-1,469,534.88-372,477.11

Finding the Fourth Proportional to 979,679.54, 1,469,534.88 and 372,477.11

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Solution

The fourth proportional to 979,679.54, 1,469,534.88 and 372,477.11 is: 558,721.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,679.54 : 1,469,534.88 = 372,477.11 : x
  2. Step 2: Convert to fraction form
    979,679.54/1,469,534.88 = 372,477.11/x
  3. Step 3: Cross multiply
    979,679.54x = 1,469,534.88 × 372,477.11
  4. Step 4: Simplify right side
    979,679.54x = 547,368,105,146.60
  5. Step 5: Solve for x
    x = 547,368,105,146.60/979,679.54
  6. Step 6: Final answer
    x = 558,721.58

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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.