Home / 721,900.80-1,083,915.68-402,676.37

Finding the Fourth Proportional to 721,900.80, 1,083,915.68 and 402,676.37

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Solution

The fourth proportional to 721,900.80, 1,083,915.68 and 402,676.37 is: 604,608.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,900.80 : 1,083,915.68 = 402,676.37 : x
  2. Step 2: Convert to fraction form
    721,900.80/1,083,915.68 = 402,676.37/x
  3. Step 3: Cross multiply
    721,900.80x = 1,083,915.68 × 402,676.37
  4. Step 4: Simplify right side
    721,900.80x = 436,467,223,975.52
  5. Step 5: Solve for x
    x = 436,467,223,975.52/721,900.80
  6. Step 6: Final answer
    x = 604,608.31

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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.