Home / 918,351.87-1,267,669.40-689,570.07

Finding the Fourth Proportional to 918,351.87, 1,267,669.40 and 689,570.07

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Solution

The fourth proportional to 918,351.87, 1,267,669.40 and 689,570.07 is: 951,864.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,351.87 : 1,267,669.40 = 689,570.07 : x
  2. Step 2: Convert to fraction form
    918,351.87/1,267,669.40 = 689,570.07/x
  3. Step 3: Cross multiply
    918,351.87x = 1,267,669.40 × 689,570.07
  4. Step 4: Simplify right side
    918,351.87x = 874,146,873,447.01
  5. Step 5: Solve for x
    x = 874,146,873,447.01/918,351.87
  6. Step 6: Final answer
    x = 951,864.86

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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.