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Finding the Fourth Proportional to 1,295,999.10, 1,943,998.65 and 976,664.70

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Solution

The fourth proportional to 1,295,999.10, 1,943,998.65 and 976,664.70 is: 1,464,997.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,999.10 : 1,943,998.65 = 976,664.70 : x
  2. Step 2: Convert to fraction form
    1,295,999.10/1,943,998.65 = 976,664.70/x
  3. Step 3: Cross multiply
    1,295,999.10x = 1,943,998.65 × 976,664.70
  4. Step 4: Simplify right side
    1,295,999.10x = 1,898,634,858,302.65
  5. Step 5: Solve for x
    x = 1,898,634,858,302.65/1,295,999.10
  6. Step 6: Final answer
    x = 1,464,997.05

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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.