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Finding the Fourth Proportional to 806,792.40, 1,210,189.41 and 207,754.88

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Solution

The fourth proportional to 806,792.40, 1,210,189.41 and 207,754.88 is: 311,632.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,792.40 : 1,210,189.41 = 207,754.88 : x
  2. Step 2: Convert to fraction form
    806,792.40/1,210,189.41 = 207,754.88/x
  3. Step 3: Cross multiply
    806,792.40x = 1,210,189.41 × 207,754.88
  4. Step 4: Simplify right side
    806,792.40x = 251,422,749,600.87
  5. Step 5: Solve for x
    x = 251,422,749,600.87/806,792.40
  6. Step 6: Final answer
    x = 311,632.52

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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.