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Finding the Fourth Proportional to 442,539.09, 610,800.62 and 281,362.64

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Solution

The fourth proportional to 442,539.09, 610,800.62 and 281,362.64 is: 388,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,539.09 : 610,800.62 = 281,362.64 : x
  2. Step 2: Convert to fraction form
    442,539.09/610,800.62 = 281,362.64/x
  3. Step 3: Cross multiply
    442,539.09x = 610,800.62 × 281,362.64
  4. Step 4: Simplify right side
    442,539.09x = 171,856,470,496.02
  5. Step 5: Solve for x
    x = 171,856,470,496.02/442,539.09
  6. Step 6: Final answer
    x = 388,341.90

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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.