Home / 775,868.40-1,163,802.60-509,929.20

Finding the Fourth Proportional to 775,868.40, 1,163,802.60 and 509,929.20

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Solution

The fourth proportional to 775,868.40, 1,163,802.60 and 509,929.20 is: 764,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,868.40 : 1,163,802.60 = 509,929.20 : x
  2. Step 2: Convert to fraction form
    775,868.40/1,163,802.60 = 509,929.20/x
  3. Step 3: Cross multiply
    775,868.40x = 1,163,802.60 × 509,929.20
  4. Step 4: Simplify right side
    775,868.40x = 593,456,928,775.92
  5. Step 5: Solve for x
    x = 593,456,928,775.92/775,868.40
  6. Step 6: Final answer
    x = 764,893.80

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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.