Home / 759,688.89-1,139,112.69-310,725.08

Finding the Fourth Proportional to 759,688.89, 1,139,112.69 and 310,725.08

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Solution

The fourth proportional to 759,688.89, 1,139,112.69 and 310,725.08 is: 465,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,688.89 : 1,139,112.69 = 310,725.08 : x
  2. Step 2: Convert to fraction form
    759,688.89/1,139,112.69 = 310,725.08/x
  3. Step 3: Cross multiply
    759,688.89x = 1,139,112.69 × 310,725.08
  4. Step 4: Simplify right side
    759,688.89x = 353,950,876,033.70
  5. Step 5: Solve for x
    x = 353,950,876,033.70/759,688.89
  6. Step 6: Final answer
    x = 465,915.56

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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.