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Finding the Fourth Proportional to 531,954.60, 798,450.30 and 266,015.40

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Solution

The fourth proportional to 531,954.60, 798,450.30 and 266,015.40 is: 399,282.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,954.60 : 798,450.30 = 266,015.40 : x
  2. Step 2: Convert to fraction form
    531,954.60/798,450.30 = 266,015.40/x
  3. Step 3: Cross multiply
    531,954.60x = 798,450.30 × 266,015.40
  4. Step 4: Simplify right side
    531,954.60x = 212,400,075,934.62
  5. Step 5: Solve for x
    x = 212,400,075,934.62/531,954.60
  6. Step 6: Final answer
    x = 399,282.34

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.