Home / 1,052,976.75-1,579,662-421,939.77

Finding the Fourth Proportional to 1,052,976.75, 1,579,662 and 421,939.77

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Solution

The fourth proportional to 1,052,976.75, 1,579,662 and 421,939.77 is: 632,988.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052,976.75 : 1,579,662 = 421,939.77 : x
  2. Step 2: Convert to fraction form
    1,052,976.75/1,579,662 = 421,939.77/x
  3. Step 3: Cross multiply
    1,052,976.75x = 1,579,662 × 421,939.77
  4. Step 4: Simplify right side
    1,052,976.75x = 666,522,220,957.74
  5. Step 5: Solve for x
    x = 666,522,220,957.74/1,052,976.75
  6. Step 6: Final answer
    x = 632,988.55

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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.