Home / 908,379.45-1,362,569.18-859,390.65

Finding the Fourth Proportional to 908,379.45, 1,362,569.18 and 859,390.65

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Solution

The fourth proportional to 908,379.45, 1,362,569.18 and 859,390.65 is: 1,289,085.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,379.45 : 1,362,569.18 = 859,390.65 : x
  2. Step 2: Convert to fraction form
    908,379.45/1,362,569.18 = 859,390.65/x
  3. Step 3: Cross multiply
    908,379.45x = 1,362,569.18 × 859,390.65
  4. Step 4: Simplify right side
    908,379.45x = 1,170,979,208,973.21
  5. Step 5: Solve for x
    x = 1,170,979,208,973.21/908,379.45
  6. Step 6: Final answer
    x = 1,289,085.98

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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.