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Finding the Fourth Proportional to 490,671.40, 736,007.10 and 340,594.60

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Solution

The fourth proportional to 490,671.40, 736,007.10 and 340,594.60 is: 510,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,671.40 : 736,007.10 = 340,594.60 : x
  2. Step 2: Convert to fraction form
    490,671.40/736,007.10 = 340,594.60/x
  3. Step 3: Cross multiply
    490,671.40x = 736,007.10 × 340,594.60
  4. Step 4: Simplify right side
    490,671.40x = 250,680,043,821.66
  5. Step 5: Solve for x
    x = 250,680,043,821.66/490,671.40
  6. Step 6: Final answer
    x = 510,891.90

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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.