Home / 722,130.86-996,556.23-395,457.75

Finding the Fourth Proportional to 722,130.86, 996,556.23 and 395,457.75

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Solution

The fourth proportional to 722,130.86, 996,556.23 and 395,457.75 is: 545,740.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,130.86 : 996,556.23 = 395,457.75 : x
  2. Step 2: Convert to fraction form
    722,130.86/996,556.23 = 395,457.75/x
  3. Step 3: Cross multiply
    722,130.86x = 996,556.23 × 395,457.75
  4. Step 4: Simplify right side
    722,130.86x = 394,095,884,464.28
  5. Step 5: Solve for x
    x = 394,095,884,464.28/722,130.86
  6. Step 6: Final answer
    x = 545,740.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.