Home / 759,688.39-1,139,111.94-310,724.58

Finding the Fourth Proportional to 759,688.39, 1,139,111.94 and 310,724.58

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Solution

The fourth proportional to 759,688.39, 1,139,111.94 and 310,724.58 is: 465,914.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,688.39 : 1,139,111.94 = 310,724.58 : x
  2. Step 2: Convert to fraction form
    759,688.39/1,139,111.94 = 310,724.58/x
  3. Step 3: Cross multiply
    759,688.39x = 1,139,111.94 × 310,724.58
  4. Step 4: Simplify right side
    759,688.39x = 353,950,073,433.93
  5. Step 5: Solve for x
    x = 353,950,073,433.93/759,688.39
  6. Step 6: Final answer
    x = 465,914.81

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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.