Home / 1,186,455.88-1,779,668.82-287,905

Finding the Fourth Proportional to 1,186,455.88, 1,779,668.82 and 287,905

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Solution

The fourth proportional to 1,186,455.88, 1,779,668.82 and 287,905 is: 431,853.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,455.88 : 1,779,668.82 = 287,905 : x
  2. Step 2: Convert to fraction form
    1,186,455.88/1,779,668.82 = 287,905/x
  3. Step 3: Cross multiply
    1,186,455.88x = 1,779,668.82 × 287,905
  4. Step 4: Simplify right side
    1,186,455.88x = 512,375,551,622.10
  5. Step 5: Solve for x
    x = 512,375,551,622.10/1,186,455.88
  6. Step 6: Final answer
    x = 431,853.86

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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.