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Finding the Fourth Proportional to 544,055.60, 816,083.40 and 385,425.20

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Solution

The fourth proportional to 544,055.60, 816,083.40 and 385,425.20 is: 578,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,055.60 : 816,083.40 = 385,425.20 : x
  2. Step 2: Convert to fraction form
    544,055.60/816,083.40 = 385,425.20/x
  3. Step 3: Cross multiply
    544,055.60x = 816,083.40 × 385,425.20
  4. Step 4: Simplify right side
    544,055.60x = 314,539,107,661.68
  5. Step 5: Solve for x
    x = 314,539,107,661.68/544,055.60
  6. Step 6: Final answer
    x = 578,137.80

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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.