Home / 979,855.64-1,469,211.45-380,116.04

Finding the Fourth Proportional to 979,855.64, 1,469,211.45 and 380,116.04

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Solution

The fourth proportional to 979,855.64, 1,469,211.45 and 380,116.04 is: 569,952.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,855.64 : 1,469,211.45 = 380,116.04 : x
  2. Step 2: Convert to fraction form
    979,855.64/1,469,211.45 = 380,116.04/x
  3. Step 3: Cross multiply
    979,855.64x = 1,469,211.45 × 380,116.04
  4. Step 4: Simplify right side
    979,855.64x = 558,470,838,296.66
  5. Step 5: Solve for x
    x = 558,470,838,296.66/979,855.64
  6. Step 6: Final answer
    x = 569,952.16

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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.