Home / 1,392,806.07-2,089,509.89-433,243.40

Finding the Fourth Proportional to 1,392,806.07, 2,089,509.89 and 433,243.40

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Solution

The fourth proportional to 1,392,806.07, 2,089,509.89 and 433,243.40 is: 649,958.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,806.07 : 2,089,509.89 = 433,243.40 : x
  2. Step 2: Convert to fraction form
    1,392,806.07/2,089,509.89 = 433,243.40/x
  3. Step 3: Cross multiply
    1,392,806.07x = 2,089,509.89 × 433,243.40
  4. Step 4: Simplify right side
    1,392,806.07x = 905,266,356,463.46
  5. Step 5: Solve for x
    x = 905,266,356,463.46/1,392,806.07
  6. Step 6: Final answer
    x = 649,958.65

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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.