Home / 684,479.64-1,026,815.90-211,203.48

Finding the Fourth Proportional to 684,479.64, 1,026,815.90 and 211,203.48

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Solution

The fourth proportional to 684,479.64, 1,026,815.90 and 211,203.48 is: 316,834.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,479.64 : 1,026,815.90 = 211,203.48 : x
  2. Step 2: Convert to fraction form
    684,479.64/1,026,815.90 = 211,203.48/x
  3. Step 3: Cross multiply
    684,479.64x = 1,026,815.90 × 211,203.48
  4. Step 4: Simplify right side
    684,479.64x = 216,867,091,399.33
  5. Step 5: Solve for x
    x = 216,867,091,399.33/684,479.64
  6. Step 6: Final answer
    x = 316,834.98

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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.