Home / 1,424,896.32-1,966,538.88-821,288.64

Finding the Fourth Proportional to 1,424,896.32, 1,966,538.88 and 821,288.64

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Solution

The fourth proportional to 1,424,896.32, 1,966,538.88 and 821,288.64 is: 1,133,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,896.32 : 1,966,538.88 = 821,288.64 : x
  2. Step 2: Convert to fraction form
    1,424,896.32/1,966,538.88 = 821,288.64/x
  3. Step 3: Cross multiply
    1,424,896.32x = 1,966,538.88 × 821,288.64
  4. Step 4: Simplify right side
    1,424,896.32x = 1,615,096,042,262.32
  5. Step 5: Solve for x
    x = 1,615,096,042,262.32/1,424,896.32
  6. Step 6: Final answer
    x = 1,133,483.20

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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.