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Finding the Fourth Proportional to 438,447.51, 605,108.60 and 364,729.71

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Solution

The fourth proportional to 438,447.51, 605,108.60 and 364,729.71 is: 503,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,447.51 : 605,108.60 = 364,729.71 : x
  2. Step 2: Convert to fraction form
    438,447.51/605,108.60 = 364,729.71/x
  3. Step 3: Cross multiply
    438,447.51x = 605,108.60 × 364,729.71
  4. Step 4: Simplify right side
    438,447.51x = 220,701,082,372.86
  5. Step 5: Solve for x
    x = 220,701,082,372.86/438,447.51
  6. Step 6: Final answer
    x = 503,369.45

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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.