Home / 2,912,486.72-4,368,727.78-782,570.84

Finding the Fourth Proportional to 2,912,486.72, 4,368,727.78 and 782,570.84

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Solution

The fourth proportional to 2,912,486.72, 4,368,727.78 and 782,570.84 is: 1,173,855.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,486.72 : 4,368,727.78 = 782,570.84 : x
  2. Step 2: Convert to fraction form
    2,912,486.72/4,368,727.78 = 782,570.84/x
  3. Step 3: Cross multiply
    2,912,486.72x = 4,368,727.78 × 782,570.84
  4. Step 4: Simplify right side
    2,912,486.72x = 3,418,838,944,725.87
  5. Step 5: Solve for x
    x = 3,418,838,944,725.87/2,912,486.72
  6. Step 6: Final answer
    x = 1,173,855.64

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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.