Home / 1,362,128.34-1,879,737.12-789,500.67

Finding the Fourth Proportional to 1,362,128.34, 1,879,737.12 and 789,500.67

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Solution

The fourth proportional to 1,362,128.34, 1,879,737.12 and 789,500.67 is: 1,089,510.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,128.34 : 1,879,737.12 = 789,500.67 : x
  2. Step 2: Convert to fraction form
    1,362,128.34/1,879,737.12 = 789,500.67/x
  3. Step 3: Cross multiply
    1,362,128.34x = 1,879,737.12 × 789,500.67
  4. Step 4: Simplify right side
    1,362,128.34x = 1,484,053,715,663.87
  5. Step 5: Solve for x
    x = 1,484,053,715,663.87/1,362,128.34
  6. Step 6: Final answer
    x = 1,089,510.93

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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.