Home / 758,466.60-1,138,137.30-285,491.40

Finding the Fourth Proportional to 758,466.60, 1,138,137.30 and 285,491.40

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Solution

The fourth proportional to 758,466.60, 1,138,137.30 and 285,491.40 is: 428,401.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,466.60 : 1,138,137.30 = 285,491.40 : x
  2. Step 2: Convert to fraction form
    758,466.60/1,138,137.30 = 285,491.40/x
  3. Step 3: Cross multiply
    758,466.60x = 1,138,137.30 × 285,491.40
  4. Step 4: Simplify right side
    758,466.60x = 324,928,411,169.22
  5. Step 5: Solve for x
    x = 324,928,411,169.22/758,466.60
  6. Step 6: Final answer
    x = 428,401.74

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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.