Home / 668,928.49-1,003,673.85-416,420.20

Finding the Fourth Proportional to 668,928.49, 1,003,673.85 and 416,420.20

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Solution

The fourth proportional to 668,928.49, 1,003,673.85 and 416,420.20 is: 624,805.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,928.49 : 1,003,673.85 = 416,420.20 : x
  2. Step 2: Convert to fraction form
    668,928.49/1,003,673.85 = 416,420.20/x
  3. Step 3: Cross multiply
    668,928.49x = 1,003,673.85 × 416,420.20
  4. Step 4: Simplify right side
    668,928.49x = 417,950,065,351.77
  5. Step 5: Solve for x
    x = 417,950,065,351.77/668,928.49
  6. Step 6: Final answer
    x = 624,805.30

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1.5x scale

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.