Home / 861,512.63-1,292,461.68-262,520.67

Finding the Fourth Proportional to 861,512.63, 1,292,461.68 and 262,520.67

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Solution

The fourth proportional to 861,512.63, 1,292,461.68 and 262,520.67 is: 393,839.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,512.63 : 1,292,461.68 = 262,520.67 : x
  2. Step 2: Convert to fraction form
    861,512.63/1,292,461.68 = 262,520.67/x
  3. Step 3: Cross multiply
    861,512.63x = 1,292,461.68 × 262,520.67
  4. Step 4: Simplify right side
    861,512.63x = 339,297,906,182.93
  5. Step 5: Solve for x
    x = 339,297,906,182.93/861,512.63
  6. Step 6: Final answer
    x = 393,839.74

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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.