Home / 1,555,610-2,146,743.24-840,218

Finding the Fourth Proportional to 1,555,610, 2,146,743.24 and 840,218

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Solution

The fourth proportional to 1,555,610, 2,146,743.24 and 840,218 is: 1,159,501.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,610 : 2,146,743.24 = 840,218 : x
  2. Step 2: Convert to fraction form
    1,555,610/2,146,743.24 = 840,218/x
  3. Step 3: Cross multiply
    1,555,610x = 2,146,743.24 × 840,218
  4. Step 4: Simplify right side
    1,555,610x = 1,803,732,311,626.32
  5. Step 5: Solve for x
    x = 1,803,732,311,626.32/1,555,610
  6. Step 6: Final answer
    x = 1,159,501.62

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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.