Home / 3,138,914.70-4,708,426.68-864,427.50

Finding the Fourth Proportional to 3,138,914.70, 4,708,426.68 and 864,427.50

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Solution

The fourth proportional to 3,138,914.70, 4,708,426.68 and 864,427.50 is: 1,296,656.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,914.70 : 4,708,426.68 = 864,427.50 : x
  2. Step 2: Convert to fraction form
    3,138,914.70/4,708,426.68 = 864,427.50/x
  3. Step 3: Cross multiply
    3,138,914.70x = 4,708,426.68 × 864,427.50
  4. Step 4: Simplify right side
    3,138,914.70x = 4,070,093,503,925.70
  5. Step 5: Solve for x
    x = 4,070,093,503,925.70/3,138,914.70
  6. Step 6: Final answer
    x = 1,296,656.29

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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.