Home / 821,200.51-1,125,025.92-790,498.21

Finding the Fourth Proportional to 821,200.51, 1,125,025.92 and 790,498.21

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Solution

The fourth proportional to 821,200.51, 1,125,025.92 and 790,498.21 is: 1,082,964.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,200.51 : 1,125,025.92 = 790,498.21 : x
  2. Step 2: Convert to fraction form
    821,200.51/1,125,025.92 = 790,498.21/x
  3. Step 3: Cross multiply
    821,200.51x = 1,125,025.92 × 790,498.21
  4. Step 4: Simplify right side
    821,200.51x = 889,330,975,963.60
  5. Step 5: Solve for x
    x = 889,330,975,963.60/821,200.51
  6. Step 6: Final answer
    x = 1,082,964.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.