Home / 684,970.32-1,027,695.36-211,655.64

Finding the Fourth Proportional to 684,970.32, 1,027,695.36 and 211,655.64

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Solution

The fourth proportional to 684,970.32, 1,027,695.36 and 211,655.64 is: 317,557.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,970.32 : 1,027,695.36 = 211,655.64 : x
  2. Step 2: Convert to fraction form
    684,970.32/1,027,695.36 = 211,655.64/x
  3. Step 3: Cross multiply
    684,970.32x = 1,027,695.36 × 211,655.64
  4. Step 4: Simplify right side
    684,970.32x = 217,517,519,145.83
  5. Step 5: Solve for x
    x = 217,517,519,145.83/684,970.32
  6. Step 6: Final answer
    x = 317,557.58

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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.