Home / 428,527.92-642,685.62-175,880.04

Finding the Fourth Proportional to 428,527.92, 642,685.62 and 175,880.04

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Solution

The fourth proportional to 428,527.92, 642,685.62 and 175,880.04 is: 263,776.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,527.92 : 642,685.62 = 175,880.04 : x
  2. Step 2: Convert to fraction form
    428,527.92/642,685.62 = 175,880.04/x
  3. Step 3: Cross multiply
    428,527.92x = 642,685.62 × 175,880.04
  4. Step 4: Simplify right side
    428,527.92x = 113,035,572,553.03
  5. Step 5: Solve for x
    x = 113,035,572,553.03/428,527.92
  6. Step 6: Final answer
    x = 263,776.45

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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.