Home / 1,186,457.88-1,779,671.82-287,907

Finding the Fourth Proportional to 1,186,457.88, 1,779,671.82 and 287,907

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Solution

The fourth proportional to 1,186,457.88, 1,779,671.82 and 287,907 is: 431,856.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,457.88 : 1,779,671.82 = 287,907 : x
  2. Step 2: Convert to fraction form
    1,186,457.88/1,779,671.82 = 287,907/x
  3. Step 3: Cross multiply
    1,186,457.88x = 1,779,671.82 × 287,907
  4. Step 4: Simplify right side
    1,186,457.88x = 512,379,974,680.74
  5. Step 5: Solve for x
    x = 512,379,974,680.74/1,186,457.88
  6. Step 6: Final answer
    x = 431,856.86

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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.