Home / 890,393.40-1,228,743.92-482,491.67

Finding the Fourth Proportional to 890,393.40, 1,228,743.92 and 482,491.67

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Solution

The fourth proportional to 890,393.40, 1,228,743.92 and 482,491.67 is: 665,839.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,393.40 : 1,228,743.92 = 482,491.67 : x
  2. Step 2: Convert to fraction form
    890,393.40/1,228,743.92 = 482,491.67/x
  3. Step 3: Cross multiply
    890,393.40x = 1,228,743.92 × 482,491.67
  4. Step 4: Simplify right side
    890,393.40x = 592,858,699,819.43
  5. Step 5: Solve for x
    x = 592,858,699,819.43/890,393.40
  6. Step 6: Final answer
    x = 665,839.06

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1.5x scale

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.