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Finding the Fourth Proportional to 407,858.80, 610,803.74 and 245,285.32

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Solution

The fourth proportional to 407,858.80, 610,803.74 and 245,285.32 is: 367,335.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,858.80 : 610,803.74 = 245,285.32 : x
  2. Step 2: Convert to fraction form
    407,858.80/610,803.74 = 245,285.32/x
  3. Step 3: Cross multiply
    407,858.80x = 610,803.74 × 245,285.32
  4. Step 4: Simplify right side
    407,858.80x = 149,821,190,823.10
  5. Step 5: Solve for x
    x = 149,821,190,823.10/407,858.80
  6. Step 6: Final answer
    x = 367,335.93

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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.