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Finding the Fourth Proportional to 1,661,578.70, 2,492,368.05 and 1,661,578.70

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Solution

The fourth proportional to 1,661,578.70, 2,492,368.05 and 1,661,578.70 is: 2,492,368.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,578.70 : 2,492,368.05 = 1,661,578.70 : x
  2. Step 2: Convert to fraction form
    1,661,578.70/2,492,368.05 = 1,661,578.70/x
  3. Step 3: Cross multiply
    1,661,578.70x = 2,492,368.05 × 1,661,578.70
  4. Step 4: Simplify right side
    1,661,578.70x = 4,141,265,664,440.53
  5. Step 5: Solve for x
    x = 4,141,265,664,440.53/1,661,578.70
  6. Step 6: Final answer
    x = 2,492,368.05

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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.