Home / 1,423,579.70-1,964,539.94-778,999.97

Finding the Fourth Proportional to 1,423,579.70, 1,964,539.94 and 778,999.97

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Solution

The fourth proportional to 1,423,579.70, 1,964,539.94 and 778,999.97 is: 1,075,019.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,579.70 : 1,964,539.94 = 778,999.97 : x
  2. Step 2: Convert to fraction form
    1,423,579.70/1,964,539.94 = 778,999.97/x
  3. Step 3: Cross multiply
    1,423,579.70x = 1,964,539.94 × 778,999.97
  4. Step 4: Simplify right side
    1,423,579.70x = 1,530,376,540,606.10
  5. Step 5: Solve for x
    x = 1,530,376,540,606.10/1,423,579.70
  6. Step 6: Final answer
    x = 1,075,019.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.