Home / 684,719.40-1,027,059.90-310,741.80

Finding the Fourth Proportional to 684,719.40, 1,027,059.90 and 310,741.80

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Solution

The fourth proportional to 684,719.40, 1,027,059.90 and 310,741.80 is: 466,103.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,719.40 : 1,027,059.90 = 310,741.80 : x
  2. Step 2: Convert to fraction form
    684,719.40/1,027,059.90 = 310,741.80/x
  3. Step 3: Cross multiply
    684,719.40x = 1,027,059.90 × 310,741.80
  4. Step 4: Simplify right side
    684,719.40x = 319,150,442,033.82
  5. Step 5: Solve for x
    x = 319,150,442,033.82/684,719.40
  6. Step 6: Final answer
    x = 466,103.99

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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.