Home / 1,091,576.40-1,635,809.40-805,030.80

Finding the Fourth Proportional to 1,091,576.40, 1,635,809.40 and 805,030.80

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Solution

The fourth proportional to 1,091,576.40, 1,635,809.40 and 805,030.80 is: 1,206,399.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,576.40 : 1,635,809.40 = 805,030.80 : x
  2. Step 2: Convert to fraction form
    1,091,576.40/1,635,809.40 = 805,030.80/x
  3. Step 3: Cross multiply
    1,091,576.40x = 1,635,809.40 × 805,030.80
  4. Step 4: Simplify right side
    1,091,576.40x = 1,316,876,949,929.52
  5. Step 5: Solve for x
    x = 1,316,876,949,929.52/1,091,576.40
  6. Step 6: Final answer
    x = 1,206,399.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.