Home / 828,939.60-1,243,409.40-268,376.40

Finding the Fourth Proportional to 828,939.60, 1,243,409.40 and 268,376.40

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Solution

The fourth proportional to 828,939.60, 1,243,409.40 and 268,376.40 is: 402,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,939.60 : 1,243,409.40 = 268,376.40 : x
  2. Step 2: Convert to fraction form
    828,939.60/1,243,409.40 = 268,376.40/x
  3. Step 3: Cross multiply
    828,939.60x = 1,243,409.40 × 268,376.40
  4. Step 4: Simplify right side
    828,939.60x = 333,701,738,498.16
  5. Step 5: Solve for x
    x = 333,701,738,498.16/828,939.60
  6. Step 6: Final answer
    x = 402,564.60

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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.