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Finding the Fourth Proportional to 553,928.72, 830,560.94 and 254,033.68

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Solution

The fourth proportional to 553,928.72, 830,560.94 and 254,033.68 is: 380,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,928.72 : 830,560.94 = 254,033.68 : x
  2. Step 2: Convert to fraction form
    553,928.72/830,560.94 = 254,033.68/x
  3. Step 3: Cross multiply
    553,928.72x = 830,560.94 × 254,033.68
  4. Step 4: Simplify right side
    553,928.72x = 210,990,452,052.46
  5. Step 5: Solve for x
    x = 210,990,452,052.46/553,928.72
  6. Step 6: Final answer
    x = 380,898.20

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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.