Home / 1,456,506.39-2,009,979.18-811,912.71

Finding the Fourth Proportional to 1,456,506.39, 2,009,979.18 and 811,912.71

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Solution

The fourth proportional to 1,456,506.39, 2,009,979.18 and 811,912.71 is: 1,120,439.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,506.39 : 2,009,979.18 = 811,912.71 : x
  2. Step 2: Convert to fraction form
    1,456,506.39/2,009,979.18 = 811,912.71/x
  3. Step 3: Cross multiply
    1,456,506.39x = 2,009,979.18 × 811,912.71
  4. Step 4: Simplify right side
    1,456,506.39x = 1,631,927,643,077.38
  5. Step 5: Solve for x
    x = 1,631,927,643,077.38/1,456,506.39
  6. Step 6: Final answer
    x = 1,120,439.74

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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.