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Finding the Fourth Proportional to 354,560.40, 531,840.60 and 340,563.60

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Solution

The fourth proportional to 354,560.40, 531,840.60 and 340,563.60 is: 510,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,560.40 : 531,840.60 = 340,563.60 : x
  2. Step 2: Convert to fraction form
    354,560.40/531,840.60 = 340,563.60/x
  3. Step 3: Cross multiply
    354,560.40x = 531,840.60 × 340,563.60
  4. Step 4: Simplify right side
    354,560.40x = 181,125,549,362.16
  5. Step 5: Solve for x
    x = 181,125,549,362.16/354,560.40
  6. Step 6: Final answer
    x = 510,845.40

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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.