Home / 1,109,707.62-1,530,960.79-644,482.30

Finding the Fourth Proportional to 1,109,707.62, 1,530,960.79 and 644,482.30

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Solution

The fourth proportional to 1,109,707.62, 1,530,960.79 and 644,482.30 is: 889,132.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,707.62 : 1,530,960.79 = 644,482.30 : x
  2. Step 2: Convert to fraction form
    1,109,707.62/1,530,960.79 = 644,482.30/x
  3. Step 3: Cross multiply
    1,109,707.62x = 1,530,960.79 × 644,482.30
  4. Step 4: Simplify right side
    1,109,707.62x = 986,677,131,149.02
  5. Step 5: Solve for x
    x = 986,677,131,149.02/1,109,707.62
  6. Step 6: Final answer
    x = 889,132.52

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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.