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Finding the Fourth Proportional to 442,491.36, 610,697.60 and 281,362.40

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Solution

The fourth proportional to 442,491.36, 610,697.60 and 281,362.40 is: 388,317.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,491.36 : 610,697.60 = 281,362.40 : x
  2. Step 2: Convert to fraction form
    442,491.36/610,697.60 = 281,362.40/x
  3. Step 3: Cross multiply
    442,491.36x = 610,697.60 × 281,362.40
  4. Step 4: Simplify right side
    442,491.36x = 171,827,342,410.24
  5. Step 5: Solve for x
    x = 171,827,342,410.24/442,491.36
  6. Step 6: Final answer
    x = 388,317.96

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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.