Home / 724,339.40-1,085,634.30-369,170.60

Finding the Fourth Proportional to 724,339.40, 1,085,634.30 and 369,170.60

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Solution

The fourth proportional to 724,339.40, 1,085,634.30 and 369,170.60 is: 553,310.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,339.40 : 1,085,634.30 = 369,170.60 : x
  2. Step 2: Convert to fraction form
    724,339.40/1,085,634.30 = 369,170.60/x
  3. Step 3: Cross multiply
    724,339.40x = 1,085,634.30 × 369,170.60
  4. Step 4: Simplify right side
    724,339.40x = 400,784,265,911.58
  5. Step 5: Solve for x
    x = 400,784,265,911.58/724,339.40
  6. Step 6: Final answer
    x = 553,310.04

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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.