Home / 1,297,045.48-1,789,408.38-866,643.88

Finding the Fourth Proportional to 1,297,045.48, 1,789,408.38 and 866,643.88

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Solution

The fourth proportional to 1,297,045.48, 1,789,408.38 and 866,643.88 is: 1,195,624.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,045.48 : 1,789,408.38 = 866,643.88 : x
  2. Step 2: Convert to fraction form
    1,297,045.48/1,789,408.38 = 866,643.88/x
  3. Step 3: Cross multiply
    1,297,045.48x = 1,789,408.38 × 866,643.88
  4. Step 4: Simplify right side
    1,297,045.48x = 1,550,779,821,347.71
  5. Step 5: Solve for x
    x = 1,550,779,821,347.71/1,297,045.48
  6. Step 6: Final answer
    x = 1,195,624.86

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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.