Home / 979,841.16-1,469,189.69-380,101.51

Finding the Fourth Proportional to 979,841.16, 1,469,189.69 and 380,101.51

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Solution

The fourth proportional to 979,841.16, 1,469,189.69 and 380,101.51 is: 569,930.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,841.16 : 1,469,189.69 = 380,101.51 : x
  2. Step 2: Convert to fraction form
    979,841.16/1,469,189.69 = 380,101.51/x
  3. Step 3: Cross multiply
    979,841.16x = 1,469,189.69 × 380,101.51
  4. Step 4: Simplify right side
    979,841.16x = 558,441,219,645.43
  5. Step 5: Solve for x
    x = 558,441,219,645.43/979,841.16
  6. Step 6: Final answer
    x = 569,930.35

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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.