Home / 904,749.96-1,355,057.32-431,767.47

Finding the Fourth Proportional to 904,749.96, 1,355,057.32 and 431,767.47

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Solution

The fourth proportional to 904,749.96, 1,355,057.32 and 431,767.47 is: 646,664.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,749.96 : 1,355,057.32 = 431,767.47 : x
  2. Step 2: Convert to fraction form
    904,749.96/1,355,057.32 = 431,767.47/x
  3. Step 3: Cross multiply
    904,749.96x = 1,355,057.32 × 431,767.47
  4. Step 4: Simplify right side
    904,749.96x = 585,069,670,761.38
  5. Step 5: Solve for x
    x = 585,069,670,761.38/904,749.96
  6. Step 6: Final answer
    x = 646,664.49

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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.