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Finding the Fourth Proportional to 609,201.75, 840,698.42 and 340,929.75

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Solution

The fourth proportional to 609,201.75, 840,698.42 and 340,929.75 is: 470,483.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,201.75 : 840,698.42 = 340,929.75 : x
  2. Step 2: Convert to fraction form
    609,201.75/840,698.42 = 340,929.75/x
  3. Step 3: Cross multiply
    609,201.75x = 840,698.42 × 340,929.75
  4. Step 4: Simplify right side
    609,201.75x = 286,619,100,451.35
  5. Step 5: Solve for x
    x = 286,619,100,451.35/609,201.75
  6. Step 6: Final answer
    x = 470,483.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.