Home / 684,639.80-1,027,056.90-211,275.80

Finding the Fourth Proportional to 684,639.80, 1,027,056.90 and 211,275.80

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Solution

The fourth proportional to 684,639.80, 1,027,056.90 and 211,275.80 is: 316,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,639.80 : 1,027,056.90 = 211,275.80 : x
  2. Step 2: Convert to fraction form
    684,639.80/1,027,056.90 = 211,275.80/x
  3. Step 3: Cross multiply
    684,639.80x = 1,027,056.90 × 211,275.80
  4. Step 4: Simplify right side
    684,639.80x = 216,992,268,193.02
  5. Step 5: Solve for x
    x = 216,992,268,193.02/684,639.80
  6. Step 6: Final answer
    x = 316,943.70

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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.