Home / 1,392,700.92-2,089,051.38-919,275.57

Finding the Fourth Proportional to 1,392,700.92, 2,089,051.38 and 919,275.57

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Solution

The fourth proportional to 1,392,700.92, 2,089,051.38 and 919,275.57 is: 1,378,913.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,700.92 : 2,089,051.38 = 919,275.57 : x
  2. Step 2: Convert to fraction form
    1,392,700.92/2,089,051.38 = 919,275.57/x
  3. Step 3: Cross multiply
    1,392,700.92x = 2,089,051.38 × 919,275.57
  4. Step 4: Simplify right side
    1,392,700.92x = 1,920,413,898,108.79
  5. Step 5: Solve for x
    x = 1,920,413,898,108.79/1,392,700.92
  6. Step 6: Final answer
    x = 1,378,913.36

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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.