Home / 1,721,765.52-2,378,939.40-1,237,366.86

Finding the Fourth Proportional to 1,721,765.52, 2,378,939.40 and 1,237,366.86

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Solution

The fourth proportional to 1,721,765.52, 2,378,939.40 and 1,237,366.86 is: 1,709,652.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721,765.52 : 2,378,939.40 = 1,237,366.86 : x
  2. Step 2: Convert to fraction form
    1,721,765.52/2,378,939.40 = 1,237,366.86/x
  3. Step 3: Cross multiply
    1,721,765.52x = 2,378,939.40 × 1,237,366.86
  4. Step 4: Simplify right side
    1,721,765.52x = 2,943,620,775,508.28
  5. Step 5: Solve for x
    x = 2,943,620,775,508.28/1,721,765.52
  6. Step 6: Final answer
    x = 1,709,652.53

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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.