Home / 724,809.40-1,086,339.30-369,640.60

Finding the Fourth Proportional to 724,809.40, 1,086,339.30 and 369,640.60

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Solution

The fourth proportional to 724,809.40, 1,086,339.30 and 369,640.60 is: 554,014.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,809.40 : 1,086,339.30 = 369,640.60 : x
  2. Step 2: Convert to fraction form
    724,809.40/1,086,339.30 = 369,640.60/x
  3. Step 3: Cross multiply
    724,809.40x = 1,086,339.30 × 369,640.60
  4. Step 4: Simplify right side
    724,809.40x = 401,555,110,655.58
  5. Step 5: Solve for x
    x = 401,555,110,655.58/724,809.40
  6. Step 6: Final answer
    x = 554,014.77

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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.