Home / 753,446.40-1,129,466.88-254,461.44

Finding the Fourth Proportional to 753,446.40, 1,129,466.88 and 254,461.44

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Solution

The fourth proportional to 753,446.40, 1,129,466.88 and 254,461.44 is: 381,454.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,446.40 : 1,129,466.88 = 254,461.44 : x
  2. Step 2: Convert to fraction form
    753,446.40/1,129,466.88 = 254,461.44/x
  3. Step 3: Cross multiply
    753,446.40x = 1,129,466.88 × 254,461.44
  4. Step 4: Simplify right side
    753,446.40x = 287,405,768,717.11
  5. Step 5: Solve for x
    x = 287,405,768,717.11/753,446.40
  6. Step 6: Final answer
    x = 381,454.83

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1.5x scale

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.