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Finding the Fourth Proportional to 556,376.40, 834,564.60 and 276,440.40

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Solution

The fourth proportional to 556,376.40, 834,564.60 and 276,440.40 is: 414,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,376.40 : 834,564.60 = 276,440.40 : x
  2. Step 2: Convert to fraction form
    556,376.40/834,564.60 = 276,440.40/x
  3. Step 3: Cross multiply
    556,376.40x = 834,564.60 × 276,440.40
  4. Step 4: Simplify right side
    556,376.40x = 230,707,371,849.84
  5. Step 5: Solve for x
    x = 230,707,371,849.84/556,376.40
  6. Step 6: Final answer
    x = 414,660.60

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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.