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Finding the Fourth Proportional to 613,446.66, 846,537.16 and 355,328.65

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Solution

The fourth proportional to 613,446.66, 846,537.16 and 355,328.65 is: 490,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,446.66 : 846,537.16 = 355,328.65 : x
  2. Step 2: Convert to fraction form
    613,446.66/846,537.16 = 355,328.65/x
  3. Step 3: Cross multiply
    613,446.66x = 846,537.16 × 355,328.65
  4. Step 4: Simplify right side
    613,446.66x = 300,798,906,237.63
  5. Step 5: Solve for x
    x = 300,798,906,237.63/613,446.66
  6. Step 6: Final answer
    x = 490,342.40

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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.