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Finding the Fourth Proportional to 383,334.86, 528,643.28 and 302,954.41

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Solution

The fourth proportional to 383,334.86, 528,643.28 and 302,954.41 is: 417,793.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,334.86 : 528,643.28 = 302,954.41 : x
  2. Step 2: Convert to fraction form
    383,334.86/528,643.28 = 302,954.41/x
  3. Step 3: Cross multiply
    383,334.86x = 528,643.28 × 302,954.41
  4. Step 4: Simplify right side
    383,334.86x = 160,154,812,992.87
  5. Step 5: Solve for x
    x = 160,154,812,992.87/383,334.86
  6. Step 6: Final answer
    x = 417,793.50

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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.