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Finding the Fourth Proportional to 1,294,482.60, 1,941,723.90 and 871,468.20

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Solution

The fourth proportional to 1,294,482.60, 1,941,723.90 and 871,468.20 is: 1,307,202.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,482.60 : 1,941,723.90 = 871,468.20 : x
  2. Step 2: Convert to fraction form
    1,294,482.60/1,941,723.90 = 871,468.20/x
  3. Step 3: Cross multiply
    1,294,482.60x = 1,941,723.90 × 871,468.20
  4. Step 4: Simplify right side
    1,294,482.60x = 1,692,150,632,029.98
  5. Step 5: Solve for x
    x = 1,692,150,632,029.98/1,294,482.60
  6. Step 6: Final answer
    x = 1,307,202.30

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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.