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Finding the Fourth Proportional to 1,866,152.40, 2,795,081.40 and 1,617,320.40

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Solution

The fourth proportional to 1,866,152.40, 2,795,081.40 and 1,617,320.40 is: 2,422,386.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,152.40 : 2,795,081.40 = 1,617,320.40 : x
  2. Step 2: Convert to fraction form
    1,866,152.40/2,795,081.40 = 1,617,320.40/x
  3. Step 3: Cross multiply
    1,866,152.40x = 2,795,081.40 × 1,617,320.40
  4. Step 4: Simplify right side
    1,866,152.40x = 4,520,542,167,880.56
  5. Step 5: Solve for x
    x = 4,520,542,167,880.56/1,866,152.40
  6. Step 6: Final answer
    x = 2,422,386.39

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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.