Home / 4,680,979.30-7,022,015.70-1,486,428.40

Finding the Fourth Proportional to 4,680,979.30, 7,022,015.70 and 1,486,428.40

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Solution

The fourth proportional to 4,680,979.30, 7,022,015.70 and 1,486,428.40 is: 2,229,816.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680,979.30 : 7,022,015.70 = 1,486,428.40 : x
  2. Step 2: Convert to fraction form
    4,680,979.30/7,022,015.70 = 1,486,428.40/x
  3. Step 3: Cross multiply
    4,680,979.30x = 7,022,015.70 × 1,486,428.40
  4. Step 4: Simplify right side
    4,680,979.30x = 10,437,723,561,725.88
  5. Step 5: Solve for x
    x = 10,437,723,561,725.88/4,680,979.30
  6. Step 6: Final answer
    x = 2,229,816.22

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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.