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Finding the Fourth Proportional to 428,099.84, 590,771.76 and 246,812.08

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Solution

The fourth proportional to 428,099.84, 590,771.76 and 246,812.08 is: 340,597.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,099.84 : 590,771.76 = 246,812.08 : x
  2. Step 2: Convert to fraction form
    428,099.84/590,771.76 = 246,812.08/x
  3. Step 3: Cross multiply
    428,099.84x = 590,771.76 × 246,812.08
  4. Step 4: Simplify right side
    428,099.84x = 145,809,606,890.86
  5. Step 5: Solve for x
    x = 145,809,606,890.86/428,099.84
  6. Step 6: Final answer
    x = 340,597.20

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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.