Home / 985,608.15-1,478,594.75-311,859.06

Finding the Fourth Proportional to 985,608.15, 1,478,594.75 and 311,859.06

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Solution

The fourth proportional to 985,608.15, 1,478,594.75 and 311,859.06 is: 467,846.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,608.15 : 1,478,594.75 = 311,859.06 : x
  2. Step 2: Convert to fraction form
    985,608.15/1,478,594.75 = 311,859.06/x
  3. Step 3: Cross multiply
    985,608.15x = 1,478,594.75 × 311,859.06
  4. Step 4: Simplify right side
    985,608.15x = 461,113,167,296.64
  5. Step 5: Solve for x
    x = 461,113,167,296.64/985,608.15
  6. Step 6: Final answer
    x = 467,846.34

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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.