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Finding the Fourth Proportional to 368,401.32, 507,698.94 and 322,782.12

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Solution

The fourth proportional to 368,401.32, 507,698.94 and 322,782.12 is: 444,830.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,401.32 : 507,698.94 = 322,782.12 : x
  2. Step 2: Convert to fraction form
    368,401.32/507,698.94 = 322,782.12/x
  3. Step 3: Cross multiply
    368,401.32x = 507,698.94 × 322,782.12
  4. Step 4: Simplify right side
    368,401.32x = 163,876,140,174.95
  5. Step 5: Solve for x
    x = 163,876,140,174.95/368,401.32
  6. Step 6: Final answer
    x = 444,830.49

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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.