Home / 806,668.17-1,210,750.41-407,589.21

Finding the Fourth Proportional to 806,668.17, 1,210,750.41 and 407,589.21

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Solution

The fourth proportional to 806,668.17, 1,210,750.41 and 407,589.21 is: 611,761.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,668.17 : 1,210,750.41 = 407,589.21 : x
  2. Step 2: Convert to fraction form
    806,668.17/1,210,750.41 = 407,589.21/x
  3. Step 3: Cross multiply
    806,668.17x = 1,210,750.41 × 407,589.21
  4. Step 4: Simplify right side
    806,668.17x = 493,488,803,119.08
  5. Step 5: Solve for x
    x = 493,488,803,119.08/806,668.17
  6. Step 6: Final answer
    x = 611,761.84

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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.