Home / 674,954.40-1,012,431.60-670,288.80

Finding the Fourth Proportional to 674,954.40, 1,012,431.60 and 670,288.80

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Solution

The fourth proportional to 674,954.40, 1,012,431.60 and 670,288.80 is: 1,005,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,954.40 : 1,012,431.60 = 670,288.80 : x
  2. Step 2: Convert to fraction form
    674,954.40/1,012,431.60 = 670,288.80/x
  3. Step 3: Cross multiply
    674,954.40x = 1,012,431.60 × 670,288.80
  4. Step 4: Simplify right side
    674,954.40x = 678,621,562,246.08
  5. Step 5: Solve for x
    x = 678,621,562,246.08/674,954.40
  6. Step 6: Final answer
    x = 1,005,433.20

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Similar ratio
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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.