Home / 513,921.86-770,827.38-134,880.59

Finding the Fourth Proportional to 513,921.86, 770,827.38 and 134,880.59

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Solution

The fourth proportional to 513,921.86, 770,827.38 and 134,880.59 is: 202,306.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,921.86 : 770,827.38 = 134,880.59 : x
  2. Step 2: Convert to fraction form
    513,921.86/770,827.38 = 134,880.59/x
  3. Step 3: Cross multiply
    513,921.86x = 770,827.38 × 134,880.59
  4. Step 4: Simplify right side
    513,921.86x = 103,969,647,948.42
  5. Step 5: Solve for x
    x = 103,969,647,948.42/513,921.86
  6. Step 6: Final answer
    x = 202,306.34

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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.