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Finding the Fourth Proportional to 450,702, 621,786.60 and 259,613.04

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Solution

The fourth proportional to 450,702, 621,786.60 and 259,613.04 is: 358,161.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,702 : 621,786.60 = 259,613.04 : x
  2. Step 2: Convert to fraction form
    450,702/621,786.60 = 259,613.04/x
  3. Step 3: Cross multiply
    450,702x = 621,786.60 × 259,613.04
  4. Step 4: Simplify right side
    450,702x = 161,423,909,457.26
  5. Step 5: Solve for x
    x = 161,423,909,457.26/450,702
  6. Step 6: Final answer
    x = 358,161.07

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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.