Home / 904,771.96-1,355,090.32-431,789.48

Finding the Fourth Proportional to 904,771.96, 1,355,090.32 and 431,789.48

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Solution

The fourth proportional to 904,771.96, 1,355,090.32 and 431,789.48 is: 646,697.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,771.96 : 1,355,090.32 = 431,789.48 : x
  2. Step 2: Convert to fraction form
    904,771.96/1,355,090.32 = 431,789.48/x
  3. Step 3: Cross multiply
    904,771.96x = 1,355,090.32 × 431,789.48
  4. Step 4: Simplify right side
    904,771.96x = 585,113,744,625.83
  5. Step 5: Solve for x
    x = 585,113,744,625.83/904,771.96
  6. Step 6: Final answer
    x = 646,697.48

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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.