Home / 1,306,471.73-1,959,706.86-407,990.46

Finding the Fourth Proportional to 1,306,471.73, 1,959,706.86 and 407,990.46

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Solution

The fourth proportional to 1,306,471.73, 1,959,706.86 and 407,990.46 is: 611,985.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,471.73 : 1,959,706.86 = 407,990.46 : x
  2. Step 2: Convert to fraction form
    1,306,471.73/1,959,706.86 = 407,990.46/x
  3. Step 3: Cross multiply
    1,306,471.73x = 1,959,706.86 × 407,990.46
  4. Step 4: Simplify right side
    1,306,471.73x = 799,541,703,276.56
  5. Step 5: Solve for x
    x = 799,541,703,276.56/1,306,471.73
  6. Step 6: Final answer
    x = 611,985.46

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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.