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Finding the Fourth Proportional to 531,645.21, 733,671.60 and 302,203.98

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Solution

The fourth proportional to 531,645.21, 733,671.60 and 302,203.98 is: 417,042.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,645.21 : 733,671.60 = 302,203.98 : x
  2. Step 2: Convert to fraction form
    531,645.21/733,671.60 = 302,203.98/x
  3. Step 3: Cross multiply
    531,645.21x = 733,671.60 × 302,203.98
  4. Step 4: Simplify right side
    531,645.21x = 221,718,477,532.97
  5. Step 5: Solve for x
    x = 221,718,477,532.97/531,645.21
  6. Step 6: Final answer
    x = 417,042.18

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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.