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Finding the Fourth Proportional to 664,962.62, 917,596.38 and 374,561.49

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Solution

The fourth proportional to 664,962.62, 917,596.38 and 374,561.49 is: 516,865.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,962.62 : 917,596.38 = 374,561.49 : x
  2. Step 2: Convert to fraction form
    664,962.62/917,596.38 = 374,561.49/x
  3. Step 3: Cross multiply
    664,962.62x = 917,596.38 × 374,561.49
  4. Step 4: Simplify right side
    664,962.62x = 343,696,262,307.87
  5. Step 5: Solve for x
    x = 343,696,262,307.87/664,962.62
  6. Step 6: Final answer
    x = 516,865.54

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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.