Home / 1,392,700.42-2,089,050.63-919,275.06

Finding the Fourth Proportional to 1,392,700.42, 2,089,050.63 and 919,275.06

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Solution

The fourth proportional to 1,392,700.42, 2,089,050.63 and 919,275.06 is: 1,378,912.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,700.42 : 2,089,050.63 = 919,275.06 : x
  2. Step 2: Convert to fraction form
    1,392,700.42/2,089,050.63 = 919,275.06/x
  3. Step 3: Cross multiply
    1,392,700.42x = 2,089,050.63 × 919,275.06
  4. Step 4: Simplify right side
    1,392,700.42x = 1,920,412,143,236.29
  5. Step 5: Solve for x
    x = 1,920,412,143,236.29/1,392,700.42
  6. Step 6: Final answer
    x = 1,378,912.59

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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.