Home / 3,134,853.80-4,702,280.70-1,639,404.20

Finding the Fourth Proportional to 3,134,853.80, 4,702,280.70 and 1,639,404.20

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Solution

The fourth proportional to 3,134,853.80, 4,702,280.70 and 1,639,404.20 is: 2,459,106.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134,853.80 : 4,702,280.70 = 1,639,404.20 : x
  2. Step 2: Convert to fraction form
    3,134,853.80/4,702,280.70 = 1,639,404.20/x
  3. Step 3: Cross multiply
    3,134,853.80x = 4,702,280.70 × 1,639,404.20
  4. Step 4: Simplify right side
    3,134,853.80x = 7,708,938,729,158.94
  5. Step 5: Solve for x
    x = 7,708,938,729,158.94/3,134,853.80
  6. Step 6: Final answer
    x = 2,459,106.30

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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.