Home / 1,787,980.53-2,467,443.97-972,189.72

Finding the Fourth Proportional to 1,787,980.53, 2,467,443.97 and 972,189.72

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Solution

The fourth proportional to 1,787,980.53, 2,467,443.97 and 972,189.72 is: 1,341,638.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,980.53 : 2,467,443.97 = 972,189.72 : x
  2. Step 2: Convert to fraction form
    1,787,980.53/2,467,443.97 = 972,189.72/x
  3. Step 3: Cross multiply
    1,787,980.53x = 2,467,443.97 × 972,189.72
  4. Step 4: Simplify right side
    1,787,980.53x = 2,398,823,662,309.99
  5. Step 5: Solve for x
    x = 2,398,823,662,309.99/1,787,980.53
  6. Step 6: Final answer
    x = 1,341,638.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.