Home / 721,902.86-1,083,918.82-402,678.44

Finding the Fourth Proportional to 721,902.86, 1,083,918.82 and 402,678.44

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Solution

The fourth proportional to 721,902.86, 1,083,918.82 and 402,678.44 is: 604,611.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,902.86 : 1,083,918.82 = 402,678.44 : x
  2. Step 2: Convert to fraction form
    721,902.86/1,083,918.82 = 402,678.44/x
  3. Step 3: Cross multiply
    721,902.86x = 1,083,918.82 × 402,678.44
  4. Step 4: Simplify right side
    721,902.86x = 436,470,739,524.24
  5. Step 5: Solve for x
    x = 436,470,739,524.24/721,902.86
  6. Step 6: Final answer
    x = 604,611.46

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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.