Home / 908,391.86-1,362,798.87-309,358.22

Finding the Fourth Proportional to 908,391.86, 1,362,798.87 and 309,358.22

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Solution

The fourth proportional to 908,391.86, 1,362,798.87 and 309,358.22 is: 464,109.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,391.86 : 1,362,798.87 = 309,358.22 : x
  2. Step 2: Convert to fraction form
    908,391.86/1,362,798.87 = 309,358.22/x
  3. Step 3: Cross multiply
    908,391.86x = 1,362,798.87 × 309,358.22
  4. Step 4: Simplify right side
    908,391.86x = 421,593,032,641.21
  5. Step 5: Solve for x
    x = 421,593,032,641.21/908,391.86
  6. Step 6: Final answer
    x = 464,109.21

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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.