Home / 682,912.40-1,025,290.20-434,080.40

Finding the Fourth Proportional to 682,912.40, 1,025,290.20 and 434,080.40

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Solution

The fourth proportional to 682,912.40, 1,025,290.20 and 434,080.40 is: 651,706.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,912.40 : 1,025,290.20 = 434,080.40 : x
  2. Step 2: Convert to fraction form
    682,912.40/1,025,290.20 = 434,080.40/x
  3. Step 3: Cross multiply
    682,912.40x = 1,025,290.20 × 434,080.40
  4. Step 4: Simplify right side
    682,912.40x = 445,058,380,132.08
  5. Step 5: Solve for x
    x = 445,058,380,132.08/682,912.40
  6. Step 6: Final answer
    x = 651,706.40

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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.