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Finding the Fourth Proportional to 544,055.40, 816,860.70 and 307,859.40

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Solution

The fourth proportional to 544,055.40, 816,860.70 and 307,859.40 is: 462,229.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,055.40 : 816,860.70 = 307,859.40 : x
  2. Step 2: Convert to fraction form
    544,055.40/816,860.70 = 307,859.40/x
  3. Step 3: Cross multiply
    544,055.40x = 816,860.70 × 307,859.40
  4. Step 4: Simplify right side
    544,055.40x = 251,478,244,985.58
  5. Step 5: Solve for x
    x = 251,478,244,985.58/544,055.40
  6. Step 6: Final answer
    x = 462,229.11

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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.