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Finding the Fourth Proportional to 675,483.76, 1,012,851.24 and 276,404.32

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Solution

The fourth proportional to 675,483.76, 1,012,851.24 and 276,404.32 is: 414,453.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,483.76 : 1,012,851.24 = 276,404.32 : x
  2. Step 2: Convert to fraction form
    675,483.76/1,012,851.24 = 276,404.32/x
  3. Step 3: Cross multiply
    675,483.76x = 1,012,851.24 × 276,404.32
  4. Step 4: Simplify right side
    675,483.76x = 279,956,458,253.36
  5. Step 5: Solve for x
    x = 279,956,458,253.36/675,483.76
  6. Step 6: Final answer
    x = 414,453.28

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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.