Home / 849,382.20-1,274,079.78-310,025.07

Finding the Fourth Proportional to 849,382.20, 1,274,079.78 and 310,025.07

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Solution

The fourth proportional to 849,382.20, 1,274,079.78 and 310,025.07 is: 465,039.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,382.20 : 1,274,079.78 = 310,025.07 : x
  2. Step 2: Convert to fraction form
    849,382.20/1,274,079.78 = 310,025.07/x
  3. Step 3: Cross multiply
    849,382.20x = 1,274,079.78 × 310,025.07
  4. Step 4: Simplify right side
    849,382.20x = 394,996,672,980.09
  5. Step 5: Solve for x
    x = 394,996,672,980.09/849,382.20
  6. Step 6: Final answer
    x = 465,039.97

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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.