Home / 908,412.58-1,362,829.92-309,378.94

Finding the Fourth Proportional to 908,412.58, 1,362,829.92 and 309,378.94

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Solution

The fourth proportional to 908,412.58, 1,362,829.92 and 309,378.94 is: 464,140.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,412.58 : 1,362,829.92 = 309,378.94 : x
  2. Step 2: Convert to fraction form
    908,412.58/1,362,829.92 = 309,378.94/x
  3. Step 3: Cross multiply
    908,412.58x = 1,362,829.92 × 309,378.94
  4. Step 4: Simplify right side
    908,412.58x = 421,630,876,049.89
  5. Step 5: Solve for x
    x = 421,630,876,049.89/908,412.58
  6. Step 6: Final answer
    x = 464,140.29

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1.5x scale

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.