Home / 682,955.80-1,025,276.10-430,235.80

Finding the Fourth Proportional to 682,955.80, 1,025,276.10 and 430,235.80

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Solution

The fourth proportional to 682,955.80, 1,025,276.10 and 430,235.80 is: 645,884.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,955.80 : 1,025,276.10 = 430,235.80 : x
  2. Step 2: Convert to fraction form
    682,955.80/1,025,276.10 = 430,235.80/x
  3. Step 3: Cross multiply
    682,955.80x = 1,025,276.10 × 430,235.80
  4. Step 4: Simplify right side
    682,955.80x = 441,110,483,104.38
  5. Step 5: Solve for x
    x = 441,110,483,104.38/682,955.80
  6. Step 6: Final answer
    x = 645,884.38

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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.