Home / 1,186,257.57-1,637,036.30-642,393.94

Finding the Fourth Proportional to 1,186,257.57, 1,637,036.30 and 642,393.94

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Solution

The fourth proportional to 1,186,257.57, 1,637,036.30 and 642,393.94 is: 886,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,257.57 : 1,637,036.30 = 642,393.94 : x
  2. Step 2: Convert to fraction form
    1,186,257.57/1,637,036.30 = 642,393.94/x
  3. Step 3: Cross multiply
    1,186,257.57x = 1,637,036.30 × 642,393.94
  4. Step 4: Simplify right side
    1,186,257.57x = 1,051,622,198,680.02
  5. Step 5: Solve for x
    x = 1,051,622,198,680.02/1,186,257.57
  6. Step 6: Final answer
    x = 886,504.10

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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.