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Finding the Fourth Proportional to 644,415.75, 967,022.55 and 374,670.77

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Solution

The fourth proportional to 644,415.75, 967,022.55 and 374,670.77 is: 562,238.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,415.75 : 967,022.55 = 374,670.77 : x
  2. Step 2: Convert to fraction form
    644,415.75/967,022.55 = 374,670.77/x
  3. Step 3: Cross multiply
    644,415.75x = 967,022.55 × 374,670.77
  4. Step 4: Simplify right side
    644,415.75x = 362,315,078,580.75
  5. Step 5: Solve for x
    x = 362,315,078,580.75/644,415.75
  6. Step 6: Final answer
    x = 562,238.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.