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Finding the Fourth Proportional to 2,579,467.62, 3,869,210.76 and 782,366.67

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Solution

The fourth proportional to 2,579,467.62, 3,869,210.76 and 782,366.67 is: 1,173,552.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579,467.62 : 3,869,210.76 = 782,366.67 : x
  2. Step 2: Convert to fraction form
    2,579,467.62/3,869,210.76 = 782,366.67/x
  3. Step 3: Cross multiply
    2,579,467.62x = 3,869,210.76 × 782,366.67
  4. Step 4: Simplify right side
    2,579,467.62x = 3,027,141,537,829.37
  5. Step 5: Solve for x
    x = 3,027,141,537,829.37/2,579,467.62
  6. Step 6: Final answer
    x = 1,173,552.83

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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.