Home / 739,469.89-1,108,734.63-312,782.55

Finding the Fourth Proportional to 739,469.89, 1,108,734.63 and 312,782.55

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Solution

The fourth proportional to 739,469.89, 1,108,734.63 and 312,782.55 is: 468,974.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,469.89 : 1,108,734.63 = 312,782.55 : x
  2. Step 2: Convert to fraction form
    739,469.89/1,108,734.63 = 312,782.55/x
  3. Step 3: Cross multiply
    739,469.89x = 1,108,734.63 × 312,782.55
  4. Step 4: Simplify right side
    739,469.89x = 346,792,843,938.76
  5. Step 5: Solve for x
    x = 346,792,843,938.76/739,469.89
  6. Step 6: Final answer
    x = 468,974.93

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1.5x scale

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.