Home / 1,345,863.20-1,857,239.89-742,251.20

Finding the Fourth Proportional to 1,345,863.20, 1,857,239.89 and 742,251.20

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Solution

The fourth proportional to 1,345,863.20, 1,857,239.89 and 742,251.20 is: 1,024,278.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,863.20 : 1,857,239.89 = 742,251.20 : x
  2. Step 2: Convert to fraction form
    1,345,863.20/1,857,239.89 = 742,251.20/x
  3. Step 3: Cross multiply
    1,345,863.20x = 1,857,239.89 × 742,251.20
  4. Step 4: Simplify right side
    1,345,863.20x = 1,378,538,525,898.54
  5. Step 5: Solve for x
    x = 1,378,538,525,898.54/1,345,863.20
  6. Step 6: Final answer
    x = 1,024,278.34

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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.