Home / 907,729.20-1,252,675.62-499,869

Finding the Fourth Proportional to 907,729.20, 1,252,675.62 and 499,869

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Solution

The fourth proportional to 907,729.20, 1,252,675.62 and 499,869 is: 689,824.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,729.20 : 1,252,675.62 = 499,869 : x
  2. Step 2: Convert to fraction form
    907,729.20/1,252,675.62 = 499,869/x
  3. Step 3: Cross multiply
    907,729.20x = 1,252,675.62 × 499,869
  4. Step 4: Simplify right side
    907,729.20x = 626,173,709,493.78
  5. Step 5: Solve for x
    x = 626,173,709,493.78/907,729.20
  6. Step 6: Final answer
    x = 689,824.35

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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.