Home / 1,434,021.69-1,979,006.40-789,501.90

Finding the Fourth Proportional to 1,434,021.69, 1,979,006.40 and 789,501.90

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Solution

The fourth proportional to 1,434,021.69, 1,979,006.40 and 789,501.90 is: 1,089,543.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,021.69 : 1,979,006.40 = 789,501.90 : x
  2. Step 2: Convert to fraction form
    1,434,021.69/1,979,006.40 = 789,501.90/x
  3. Step 3: Cross multiply
    1,434,021.69x = 1,979,006.40 × 789,501.90
  4. Step 4: Simplify right side
    1,434,021.69x = 1,562,429,312,912.16
  5. Step 5: Solve for x
    x = 1,562,429,312,912.16/1,434,021.69
  6. Step 6: Final answer
    x = 1,089,543.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.