Home / 1,392,857.06-2,089,876.07-761,032.76

Finding the Fourth Proportional to 1,392,857.06, 2,089,876.07 and 761,032.76

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Solution

The fourth proportional to 1,392,857.06, 2,089,876.07 and 761,032.76 is: 1,141,871.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,857.06 : 2,089,876.07 = 761,032.76 : x
  2. Step 2: Convert to fraction form
    1,392,857.06/2,089,876.07 = 761,032.76/x
  3. Step 3: Cross multiply
    1,392,857.06x = 2,089,876.07 × 761,032.76
  4. Step 4: Simplify right side
    1,392,857.06x = 1,590,464,145,063.25
  5. Step 5: Solve for x
    x = 1,590,464,145,063.25/1,392,857.06
  6. Step 6: Final answer
    x = 1,141,871.77

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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.