Home / 1,004,135.88-1,385,716.50-551,430.12

Finding the Fourth Proportional to 1,004,135.88, 1,385,716.50 and 551,430.12

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Solution

The fourth proportional to 1,004,135.88, 1,385,716.50 and 551,430.12 is: 760,978.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004,135.88 : 1,385,716.50 = 551,430.12 : x
  2. Step 2: Convert to fraction form
    1,004,135.88/1,385,716.50 = 551,430.12/x
  3. Step 3: Cross multiply
    1,004,135.88x = 1,385,716.50 × 551,430.12
  4. Step 4: Simplify right side
    1,004,135.88x = 764,125,815,880.98
  5. Step 5: Solve for x
    x = 764,125,815,880.98/1,004,135.88
  6. Step 6: Final answer
    x = 760,978.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.