Home / 1,108,811.20-1,662,730.80-509,573.20

Finding the Fourth Proportional to 1,108,811.20, 1,662,730.80 and 509,573.20

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Solution

The fourth proportional to 1,108,811.20, 1,662,730.80 and 509,573.20 is: 764,136.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,811.20 : 1,662,730.80 = 509,573.20 : x
  2. Step 2: Convert to fraction form
    1,108,811.20/1,662,730.80 = 509,573.20/x
  3. Step 3: Cross multiply
    1,108,811.20x = 1,662,730.80 × 509,573.20
  4. Step 4: Simplify right side
    1,108,811.20x = 847,283,054,494.56
  5. Step 5: Solve for x
    x = 847,283,054,494.56/1,108,811.20
  6. Step 6: Final answer
    x = 764,136.45

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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.