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Finding the Fourth Proportional to 1,260,581.98, 1,890,879.89 and 313,952.70

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Solution

The fourth proportional to 1,260,581.98, 1,890,879.89 and 313,952.70 is: 470,930.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,581.98 : 1,890,879.89 = 313,952.70 : x
  2. Step 2: Convert to fraction form
    1,260,581.98/1,890,879.89 = 313,952.70/x
  3. Step 3: Cross multiply
    1,260,581.98x = 1,890,879.89 × 313,952.70
  4. Step 4: Simplify right side
    1,260,581.98x = 593,646,845,271.44
  5. Step 5: Solve for x
    x = 593,646,845,271.44/1,260,581.98
  6. Step 6: Final answer
    x = 470,930.77

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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.