Home / 813,957.79-1,220,770.42-308,344.45

Finding the Fourth Proportional to 813,957.79, 1,220,770.42 and 308,344.45

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Solution

The fourth proportional to 813,957.79, 1,220,770.42 and 308,344.45 is: 462,453.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,957.79 : 1,220,770.42 = 308,344.45 : x
  2. Step 2: Convert to fraction form
    813,957.79/1,220,770.42 = 308,344.45/x
  3. Step 3: Cross multiply
    813,957.79x = 1,220,770.42 × 308,344.45
  4. Step 4: Simplify right side
    813,957.79x = 376,417,783,731.17
  5. Step 5: Solve for x
    x = 376,417,783,731.17/813,957.79
  6. Step 6: Final answer
    x = 462,453.69

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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.