Home / 1,392,707.30-2,089,060.94-919,281.94

Finding the Fourth Proportional to 1,392,707.30, 2,089,060.94 and 919,281.94

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Solution

The fourth proportional to 1,392,707.30, 2,089,060.94 and 919,281.94 is: 1,378,922.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,707.30 : 2,089,060.94 = 919,281.94 : x
  2. Step 2: Convert to fraction form
    1,392,707.30/2,089,060.94 = 919,281.94/x
  3. Step 3: Cross multiply
    1,392,707.30x = 2,089,060.94 × 919,281.94
  4. Step 4: Simplify right side
    1,392,707.30x = 1,920,435,990,776.98
  5. Step 5: Solve for x
    x = 1,920,435,990,776.98/1,392,707.30
  6. Step 6: Final answer
    x = 1,378,922.91

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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.