Home / 684,680.80-1,027,118.40-211,316.80

Finding the Fourth Proportional to 684,680.80, 1,027,118.40 and 211,316.80

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Solution

The fourth proportional to 684,680.80, 1,027,118.40 and 211,316.80 is: 317,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,680.80 : 1,027,118.40 = 211,316.80 : x
  2. Step 2: Convert to fraction form
    684,680.80/1,027,118.40 = 211,316.80/x
  3. Step 3: Cross multiply
    684,680.80x = 1,027,118.40 × 211,316.80
  4. Step 4: Simplify right side
    684,680.80x = 217,047,373,509.12
  5. Step 5: Solve for x
    x = 217,047,373,509.12/684,680.80
  6. Step 6: Final answer
    x = 317,005.20

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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.