Home / 628,577.58-867,285.90-370,464.78

Finding the Fourth Proportional to 628,577.58, 867,285.90 and 370,464.78

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Solution

The fourth proportional to 628,577.58, 867,285.90 and 370,464.78 is: 511,152.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,577.58 : 867,285.90 = 370,464.78 : x
  2. Step 2: Convert to fraction form
    628,577.58/867,285.90 = 370,464.78/x
  3. Step 3: Cross multiply
    628,577.58x = 867,285.90 × 370,464.78
  4. Step 4: Simplify right side
    628,577.58x = 321,298,880,140.60
  5. Step 5: Solve for x
    x = 321,298,880,140.60/628,577.58
  6. Step 6: Final answer
    x = 511,152.31

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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.