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Finding the Fourth Proportional to 672,008.76, 1,008,410.04 and 245,506.68

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Solution

The fourth proportional to 672,008.76, 1,008,410.04 and 245,506.68 is: 368,405.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,008.76 : 1,008,410.04 = 245,506.68 : x
  2. Step 2: Convert to fraction form
    672,008.76/1,008,410.04 = 245,506.68/x
  3. Step 3: Cross multiply
    672,008.76x = 1,008,410.04 × 245,506.68
  4. Step 4: Simplify right side
    672,008.76x = 247,571,400,999.07
  5. Step 5: Solve for x
    x = 247,571,400,999.07/672,008.76
  6. Step 6: Final answer
    x = 368,405.02

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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.