Home / 1,861,242.30-2,791,863.45-513,612.90

Finding the Fourth Proportional to 1,861,242.30, 2,791,863.45 and 513,612.90

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Solution

The fourth proportional to 1,861,242.30, 2,791,863.45 and 513,612.90 is: 770,419.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861,242.30 : 2,791,863.45 = 513,612.90 : x
  2. Step 2: Convert to fraction form
    1,861,242.30/2,791,863.45 = 513,612.90/x
  3. Step 3: Cross multiply
    1,861,242.30x = 2,791,863.45 × 513,612.90
  4. Step 4: Simplify right side
    1,861,242.30x = 1,433,937,082,958.51
  5. Step 5: Solve for x
    x = 1,433,937,082,958.51/1,861,242.30
  6. Step 6: Final answer
    x = 770,419.35

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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.