Home / 1,230,998.20-1,846,497.30-389,615.80

Finding the Fourth Proportional to 1,230,998.20, 1,846,497.30 and 389,615.80

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Solution

The fourth proportional to 1,230,998.20, 1,846,497.30 and 389,615.80 is: 584,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,998.20 : 1,846,497.30 = 389,615.80 : x
  2. Step 2: Convert to fraction form
    1,230,998.20/1,846,497.30 = 389,615.80/x
  3. Step 3: Cross multiply
    1,230,998.20x = 1,846,497.30 × 389,615.80
  4. Step 4: Simplify right side
    1,230,998.20x = 719,424,522,737.34
  5. Step 5: Solve for x
    x = 719,424,522,737.34/1,230,998.20
  6. Step 6: Final answer
    x = 584,423.70

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Double scale
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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.