Home / 1,186,818.72-1,780,508.13-388,097.16

Finding the Fourth Proportional to 1,186,818.72, 1,780,508.13 and 388,097.16

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Solution

The fourth proportional to 1,186,818.72, 1,780,508.13 and 388,097.16 is: 582,237.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,818.72 : 1,780,508.13 = 388,097.16 : x
  2. Step 2: Convert to fraction form
    1,186,818.72/1,780,508.13 = 388,097.16/x
  3. Step 3: Cross multiply
    1,186,818.72x = 1,780,508.13 × 388,097.16
  4. Step 4: Simplify right side
    1,186,818.72x = 691,010,148,609.91
  5. Step 5: Solve for x
    x = 691,010,148,609.91/1,186,818.72
  6. Step 6: Final answer
    x = 582,237.32

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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.