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Finding the Fourth Proportional to 383,335.83, 528,644.64 and 302,955.39

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Solution

The fourth proportional to 383,335.83, 528,644.64 and 302,955.39 is: 417,794.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,335.83 : 528,644.64 = 302,955.39 : x
  2. Step 2: Convert to fraction form
    383,335.83/528,644.64 = 302,955.39/x
  3. Step 3: Cross multiply
    383,335.83x = 528,644.64 × 302,955.39
  4. Step 4: Simplify right side
    383,335.83x = 160,155,743,082.61
  5. Step 5: Solve for x
    x = 160,155,743,082.61/383,335.83
  6. Step 6: Final answer
    x = 417,794.87

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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.