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Finding the Fourth Proportional to 1,504,643.40, 2,256,965.10 and 866,914.20

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Solution

The fourth proportional to 1,504,643.40, 2,256,965.10 and 866,914.20 is: 1,300,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,504,643.40 : 2,256,965.10 = 866,914.20 : x
  2. Step 2: Convert to fraction form
    1,504,643.40/2,256,965.10 = 866,914.20/x
  3. Step 3: Cross multiply
    1,504,643.40x = 2,256,965.10 × 866,914.20
  4. Step 4: Simplify right side
    1,504,643.40x = 1,956,595,094,094.42
  5. Step 5: Solve for x
    x = 1,956,595,094,094.42/1,504,643.40
  6. Step 6: Final answer
    x = 1,300,371.30

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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.