Home / 979,842.16-1,469,191.19-380,102.51

Finding the Fourth Proportional to 979,842.16, 1,469,191.19 and 380,102.51

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Solution

The fourth proportional to 979,842.16, 1,469,191.19 and 380,102.51 is: 569,931.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,842.16 : 1,469,191.19 = 380,102.51 : x
  2. Step 2: Convert to fraction form
    979,842.16/1,469,191.19 = 380,102.51/x
  3. Step 3: Cross multiply
    979,842.16x = 1,469,191.19 × 380,102.51
  4. Step 4: Simplify right side
    979,842.16x = 558,443,258,988.89
  5. Step 5: Solve for x
    x = 558,443,258,988.89/979,842.16
  6. Step 6: Final answer
    x = 569,931.86

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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.