Home / 751,420.74-1,127,500.74-351,992.46

Finding the Fourth Proportional to 751,420.74, 1,127,500.74 and 351,992.46

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Solution

The fourth proportional to 751,420.74, 1,127,500.74 and 351,992.46 is: 528,161.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,420.74 : 1,127,500.74 = 351,992.46 : x
  2. Step 2: Convert to fraction form
    751,420.74/1,127,500.74 = 351,992.46/x
  3. Step 3: Cross multiply
    751,420.74x = 1,127,500.74 × 351,992.46
  4. Step 4: Simplify right side
    751,420.74x = 396,871,759,124.42
  5. Step 5: Solve for x
    x = 396,871,759,124.42/751,420.74
  6. Step 6: Final answer
    x = 528,161.84

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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.