Home / 890,651.13-1,335,979.44-216,732.57

Finding the Fourth Proportional to 890,651.13, 1,335,979.44 and 216,732.57

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Solution

The fourth proportional to 890,651.13, 1,335,979.44 and 216,732.57 is: 325,099.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,651.13 : 1,335,979.44 = 216,732.57 : x
  2. Step 2: Convert to fraction form
    890,651.13/1,335,979.44 = 216,732.57/x
  3. Step 3: Cross multiply
    890,651.13x = 1,335,979.44 × 216,732.57
  4. Step 4: Simplify right side
    890,651.13x = 289,550,257,498.36
  5. Step 5: Solve for x
    x = 289,550,257,498.36/890,651.13
  6. Step 6: Final answer
    x = 325,099.52

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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.