Home / 690,670.81-1,036,078.23-264,205.81

Finding the Fourth Proportional to 690,670.81, 1,036,078.23 and 264,205.81

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Solution

The fourth proportional to 690,670.81, 1,036,078.23 and 264,205.81 is: 396,336.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,670.81 : 1,036,078.23 = 264,205.81 : x
  2. Step 2: Convert to fraction form
    690,670.81/1,036,078.23 = 264,205.81/x
  3. Step 3: Cross multiply
    690,670.81x = 1,036,078.23 × 264,205.81
  4. Step 4: Simplify right side
    690,670.81x = 273,737,887,980.52
  5. Step 5: Solve for x
    x = 273,737,887,980.52/690,670.81
  6. Step 6: Final answer
    x = 396,336.26

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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.