Home / 979,840.16-1,469,188.19-380,100.51

Finding the Fourth Proportional to 979,840.16, 1,469,188.19 and 380,100.51

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Solution

The fourth proportional to 979,840.16, 1,469,188.19 and 380,100.51 is: 569,928.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,840.16 : 1,469,188.19 = 380,100.51 : x
  2. Step 2: Convert to fraction form
    979,840.16/1,469,188.19 = 380,100.51/x
  3. Step 3: Cross multiply
    979,840.16x = 1,469,188.19 × 380,100.51
  4. Step 4: Simplify right side
    979,840.16x = 558,439,181,255.23
  5. Step 5: Solve for x
    x = 558,439,181,255.23/979,840.16
  6. Step 6: Final answer
    x = 569,928.86

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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.