Home / 648,837.30-973,357.11-311,815.14

Finding the Fourth Proportional to 648,837.30, 973,357.11 and 311,815.14

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Solution

The fourth proportional to 648,837.30, 973,357.11 and 311,815.14 is: 467,771.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,837.30 : 973,357.11 = 311,815.14 : x
  2. Step 2: Convert to fraction form
    648,837.30/973,357.11 = 311,815.14/x
  3. Step 3: Cross multiply
    648,837.30x = 973,357.11 × 311,815.14
  4. Step 4: Simplify right side
    648,837.30x = 303,507,483,524.65
  5. Step 5: Solve for x
    x = 303,507,483,524.65/648,837.30
  6. Step 6: Final answer
    x = 467,771.32

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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.