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Finding the Fourth Proportional to 531,625.84, 733,630.33 and 289,913.06

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Solution

The fourth proportional to 531,625.84, 733,630.33 and 289,913.06 is: 400,072.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,625.84 : 733,630.33 = 289,913.06 : x
  2. Step 2: Convert to fraction form
    531,625.84/733,630.33 = 289,913.06/x
  3. Step 3: Cross multiply
    531,625.84x = 733,630.33 × 289,913.06
  4. Step 4: Simplify right side
    531,625.84x = 212,689,016,075.58
  5. Step 5: Solve for x
    x = 212,689,016,075.58/531,625.84
  6. Step 6: Final answer
    x = 400,072.76

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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.