Home / 1,186,515.88-1,779,758.94-287,965

Finding the Fourth Proportional to 1,186,515.88, 1,779,758.94 and 287,965

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Solution

The fourth proportional to 1,186,515.88, 1,779,758.94 and 287,965 is: 431,943.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,515.88 : 1,779,758.94 = 287,965 : x
  2. Step 2: Convert to fraction form
    1,186,515.88/1,779,758.94 = 287,965/x
  3. Step 3: Cross multiply
    1,186,515.88x = 1,779,758.94 × 287,965
  4. Step 4: Simplify right side
    1,186,515.88x = 512,508,283,157.10
  5. Step 5: Solve for x
    x = 512,508,283,157.10/1,186,515.88
  6. Step 6: Final answer
    x = 431,943.89

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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.