Home / 724,370.70-1,086,507.45-191,880.30

Finding the Fourth Proportional to 724,370.70, 1,086,507.45 and 191,880.30

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Solution

The fourth proportional to 724,370.70, 1,086,507.45 and 191,880.30 is: 287,807.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,370.70 : 1,086,507.45 = 191,880.30 : x
  2. Step 2: Convert to fraction form
    724,370.70/1,086,507.45 = 191,880.30/x
  3. Step 3: Cross multiply
    724,370.70x = 1,086,507.45 × 191,880.30
  4. Step 4: Simplify right side
    724,370.70x = 208,479,375,458.24
  5. Step 5: Solve for x
    x = 208,479,375,458.24/724,370.70
  6. Step 6: Final answer
    x = 287,807.58

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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.