Home / 684,679.80-1,027,116.90-211,315.80

Finding the Fourth Proportional to 684,679.80, 1,027,116.90 and 211,315.80

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Solution

The fourth proportional to 684,679.80, 1,027,116.90 and 211,315.80 is: 317,003.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,679.80 : 1,027,116.90 = 211,315.80 : x
  2. Step 2: Convert to fraction form
    684,679.80/1,027,116.90 = 211,315.80/x
  3. Step 3: Cross multiply
    684,679.80x = 1,027,116.90 × 211,315.80
  4. Step 4: Simplify right side
    684,679.80x = 217,046,029,417.02
  5. Step 5: Solve for x
    x = 217,046,029,417.02/684,679.80
  6. Step 6: Final answer
    x = 317,003.70

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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.