Home / 825,055.61-1,138,642.34-485,589.47

Finding the Fourth Proportional to 825,055.61, 1,138,642.34 and 485,589.47

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Solution

The fourth proportional to 825,055.61, 1,138,642.34 and 485,589.47 is: 670,152.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,055.61 : 1,138,642.34 = 485,589.47 : x
  2. Step 2: Convert to fraction form
    825,055.61/1,138,642.34 = 485,589.47/x
  3. Step 3: Cross multiply
    825,055.61x = 1,138,642.34 × 485,589.47
  4. Step 4: Simplify right side
    825,055.61x = 552,912,722,279.00
  5. Step 5: Solve for x
    x = 552,912,722,279.00/825,055.61
  6. Step 6: Final answer
    x = 670,152.07

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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.