Home / 682,800.30-1,024,200.45-417,079.80

Finding the Fourth Proportional to 682,800.30, 1,024,200.45 and 417,079.80

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Solution

The fourth proportional to 682,800.30, 1,024,200.45 and 417,079.80 is: 625,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,800.30 : 1,024,200.45 = 417,079.80 : x
  2. Step 2: Convert to fraction form
    682,800.30/1,024,200.45 = 417,079.80/x
  3. Step 3: Cross multiply
    682,800.30x = 1,024,200.45 × 417,079.80
  4. Step 4: Simplify right side
    682,800.30x = 427,173,318,845.91
  5. Step 5: Solve for x
    x = 427,173,318,845.91/682,800.30
  6. Step 6: Final answer
    x = 625,619.70

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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.