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Finding the Fourth Proportional to 354,616.40, 531,924.60 and 340,619.60

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Solution

The fourth proportional to 354,616.40, 531,924.60 and 340,619.60 is: 510,929.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,616.40 : 531,924.60 = 340,619.60 : x
  2. Step 2: Convert to fraction form
    354,616.40/531,924.60 = 340,619.60/x
  3. Step 3: Cross multiply
    354,616.40x = 531,924.60 × 340,619.60
  4. Step 4: Simplify right side
    354,616.40x = 181,183,944,482.16
  5. Step 5: Solve for x
    x = 181,183,944,482.16/354,616.40
  6. Step 6: Final answer
    x = 510,929.40

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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.