Home / 1,345,872.20-1,857,252.30-742,260.20

Finding the Fourth Proportional to 1,345,872.20, 1,857,252.30 and 742,260.20

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Solution

The fourth proportional to 1,345,872.20, 1,857,252.30 and 742,260.20 is: 1,024,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,872.20 : 1,857,252.30 = 742,260.20 : x
  2. Step 2: Convert to fraction form
    1,345,872.20/1,857,252.30 = 742,260.20/x
  3. Step 3: Cross multiply
    1,345,872.20x = 1,857,252.30 × 742,260.20
  4. Step 4: Simplify right side
    1,345,872.20x = 1,378,564,463,648.46
  5. Step 5: Solve for x
    x = 1,378,564,463,648.46/1,345,872.20
  6. Step 6: Final answer
    x = 1,024,290.76

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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.