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Finding the Fourth Proportional to 531,209.44, 733,040.76 and 304,840

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Solution

The fourth proportional to 531,209.44, 733,040.76 and 304,840 is: 420,662.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,209.44 : 733,040.76 = 304,840 : x
  2. Step 2: Convert to fraction form
    531,209.44/733,040.76 = 304,840/x
  3. Step 3: Cross multiply
    531,209.44x = 733,040.76 × 304,840
  4. Step 4: Simplify right side
    531,209.44x = 223,460,145,278.40
  5. Step 5: Solve for x
    x = 223,460,145,278.40/531,209.44
  6. Step 6: Final answer
    x = 420,662.98

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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.