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Finding the Fourth Proportional to 672,210.96, 927,639.08 and 366,290

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Solution

The fourth proportional to 672,210.96, 927,639.08 and 366,290 is: 505,473.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,210.96 : 927,639.08 = 366,290 : x
  2. Step 2: Convert to fraction form
    672,210.96/927,639.08 = 366,290/x
  3. Step 3: Cross multiply
    672,210.96x = 927,639.08 × 366,290
  4. Step 4: Simplify right side
    672,210.96x = 339,784,918,613.20
  5. Step 5: Solve for x
    x = 339,784,918,613.20/672,210.96
  6. Step 6: Final answer
    x = 505,473.64

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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.