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Finding the Fourth Proportional to 632,344.10, 872,666.80 and 374,369.09

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Solution

The fourth proportional to 632,344.10, 872,666.80 and 374,369.09 is: 516,648.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,344.10 : 872,666.80 = 374,369.09 : x
  2. Step 2: Convert to fraction form
    632,344.10/872,666.80 = 374,369.09/x
  3. Step 3: Cross multiply
    632,344.10x = 872,666.80 × 374,369.09
  4. Step 4: Simplify right side
    632,344.10x = 326,699,470,489.96
  5. Step 5: Solve for x
    x = 326,699,470,489.96/632,344.10
  6. Step 6: Final answer
    x = 516,648.25

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1.5x scale

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.