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Finding the Fourth Proportional to 455,353.65, 627,803.92 and 373,379.88

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Solution

The fourth proportional to 455,353.65, 627,803.92 and 373,379.88 is: 514,785.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,353.65 : 627,803.92 = 373,379.88 : x
  2. Step 2: Convert to fraction form
    455,353.65/627,803.92 = 373,379.88/x
  3. Step 3: Cross multiply
    455,353.65x = 627,803.92 × 373,379.88
  4. Step 4: Simplify right side
    455,353.65x = 234,409,351,359.04
  5. Step 5: Solve for x
    x = 234,409,351,359.04/455,353.65
  6. Step 6: Final answer
    x = 514,785.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.