Home / 980,720.36-1,470,349.92-412,267.76

Finding the Fourth Proportional to 980,720.36, 1,470,349.92 and 412,267.76

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Solution

The fourth proportional to 980,720.36, 1,470,349.92 and 412,267.76 is: 618,094.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,720.36 : 1,470,349.92 = 412,267.76 : x
  2. Step 2: Convert to fraction form
    980,720.36/1,470,349.92 = 412,267.76/x
  3. Step 3: Cross multiply
    980,720.36x = 1,470,349.92 × 412,267.76
  4. Step 4: Simplify right side
    980,720.36x = 606,177,867,934.58
  5. Step 5: Solve for x
    x = 606,177,867,934.58/980,720.36
  6. Step 6: Final answer
    x = 618,094.51

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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.