Home / 682,799.60-1,024,199.40-430,857.20

Finding the Fourth Proportional to 682,799.60, 1,024,199.40 and 430,857.20

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Solution

The fourth proportional to 682,799.60, 1,024,199.40 and 430,857.20 is: 646,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,799.60 : 1,024,199.40 = 430,857.20 : x
  2. Step 2: Convert to fraction form
    682,799.60/1,024,199.40 = 430,857.20/x
  3. Step 3: Cross multiply
    682,799.60x = 1,024,199.40 × 430,857.20
  4. Step 4: Simplify right side
    682,799.60x = 441,283,685,725.68
  5. Step 5: Solve for x
    x = 441,283,685,725.68/682,799.60
  6. Step 6: Final answer
    x = 646,285.80

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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.