Home / 668,770.10-1,003,436.55-416,261.78

Finding the Fourth Proportional to 668,770.10, 1,003,436.55 and 416,261.78

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Solution

The fourth proportional to 668,770.10, 1,003,436.55 and 416,261.78 is: 624,567.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,770.10 : 1,003,436.55 = 416,261.78 : x
  2. Step 2: Convert to fraction form
    668,770.10/1,003,436.55 = 416,261.78/x
  3. Step 3: Cross multiply
    668,770.10x = 1,003,436.55 × 416,261.78
  4. Step 4: Simplify right side
    668,770.10x = 417,692,284,420.06
  5. Step 5: Solve for x
    x = 417,692,284,420.06/668,770.10
  6. Step 6: Final answer
    x = 624,567.82

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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.