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Finding the Fourth Proportional to 439,442.24, 605,345.67 and 374,700.77

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Solution

The fourth proportional to 439,442.24, 605,345.67 and 374,700.77 is: 516,162.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,442.24 : 605,345.67 = 374,700.77 : x
  2. Step 2: Convert to fraction form
    439,442.24/605,345.67 = 374,700.77/x
  3. Step 3: Cross multiply
    439,442.24x = 605,345.67 × 374,700.77
  4. Step 4: Simplify right side
    439,442.24x = 226,823,485,638.44
  5. Step 5: Solve for x
    x = 226,823,485,638.44/439,442.24
  6. Step 6: Final answer
    x = 516,162.23

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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.