Home / 830,256.40-1,245,384.60-629,489.80

Finding the Fourth Proportional to 830,256.40, 1,245,384.60 and 629,489.80

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Solution

The fourth proportional to 830,256.40, 1,245,384.60 and 629,489.80 is: 944,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,256.40 : 1,245,384.60 = 629,489.80 : x
  2. Step 2: Convert to fraction form
    830,256.40/1,245,384.60 = 629,489.80/x
  3. Step 3: Cross multiply
    830,256.40x = 1,245,384.60 × 629,489.80
  4. Step 4: Simplify right side
    830,256.40x = 783,956,902,777.08
  5. Step 5: Solve for x
    x = 783,956,902,777.08/830,256.40
  6. Step 6: Final answer
    x = 944,234.70

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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.