Home / 769,934.80-1,154,124.60-349,512.40

Finding the Fourth Proportional to 769,934.80, 1,154,124.60 and 349,512.40

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Solution

The fourth proportional to 769,934.80, 1,154,124.60 and 349,512.40 is: 523,915.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,934.80 : 1,154,124.60 = 349,512.40 : x
  2. Step 2: Convert to fraction form
    769,934.80/1,154,124.60 = 349,512.40/x
  3. Step 3: Cross multiply
    769,934.80x = 1,154,124.60 × 349,512.40
  4. Step 4: Simplify right side
    769,934.80x = 403,380,858,845.04
  5. Step 5: Solve for x
    x = 403,380,858,845.04/769,934.80
  6. Step 6: Final answer
    x = 523,915.61

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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.