Home / 1,189,062-1,783,778.76-390,161.88

Finding the Fourth Proportional to 1,189,062, 1,783,778.76 and 390,161.88

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Solution

The fourth proportional to 1,189,062, 1,783,778.76 and 390,161.88 is: 585,303.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,062 : 1,783,778.76 = 390,161.88 : x
  2. Step 2: Convert to fraction form
    1,189,062/1,783,778.76 = 390,161.88/x
  3. Step 3: Cross multiply
    1,189,062x = 1,783,778.76 × 390,161.88
  4. Step 4: Simplify right side
    1,189,062x = 695,962,474,505.67
  5. Step 5: Solve for x
    x = 695,962,474,505.67/1,189,062
  6. Step 6: Final answer
    x = 585,303.77

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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.