Home / 786,684.37-1,179,133.53-691,730.77

Finding the Fourth Proportional to 786,684.37, 1,179,133.53 and 691,730.77

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Solution

The fourth proportional to 786,684.37, 1,179,133.53 and 691,730.77 is: 1,036,810.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,684.37 : 1,179,133.53 = 691,730.77 : x
  2. Step 2: Convert to fraction form
    786,684.37/1,179,133.53 = 691,730.77/x
  3. Step 3: Cross multiply
    786,684.37x = 1,179,133.53 × 691,730.77
  4. Step 4: Simplify right side
    786,684.37x = 815,642,944,639.72
  5. Step 5: Solve for x
    x = 815,642,944,639.72/786,684.37
  6. Step 6: Final answer
    x = 1,036,810.92

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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.