Home / 628,644.12-942,305.93-308,352.50

Finding the Fourth Proportional to 628,644.12, 942,305.93 and 308,352.50

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Solution

The fourth proportional to 628,644.12, 942,305.93 and 308,352.50 is: 462,204.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,644.12 : 942,305.93 = 308,352.50 : x
  2. Step 2: Convert to fraction form
    628,644.12/942,305.93 = 308,352.50/x
  3. Step 3: Cross multiply
    628,644.12x = 942,305.93 × 308,352.50
  4. Step 4: Simplify right side
    628,644.12x = 290,562,389,280.33
  5. Step 5: Solve for x
    x = 290,562,389,280.33/628,644.12
  6. Step 6: Final answer
    x = 462,204.89

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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.