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Finding the Fourth Proportional to 554,683.40, 831,878.04 and 255,010.88

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Solution

The fourth proportional to 554,683.40, 831,878.04 and 255,010.88 is: 382,448.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,683.40 : 831,878.04 = 255,010.88 : x
  2. Step 2: Convert to fraction form
    554,683.40/831,878.04 = 255,010.88/x
  3. Step 3: Cross multiply
    554,683.40x = 831,878.04 × 255,010.88
  4. Step 4: Simplify right side
    554,683.40x = 212,137,951,033.08
  5. Step 5: Solve for x
    x = 212,137,951,033.08/554,683.40
  6. Step 6: Final answer
    x = 382,448.71

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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.