Home / 879,080.80-1,318,621.20-742,223.20

Finding the Fourth Proportional to 879,080.80, 1,318,621.20 and 742,223.20

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Solution

The fourth proportional to 879,080.80, 1,318,621.20 and 742,223.20 is: 1,113,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,080.80 : 1,318,621.20 = 742,223.20 : x
  2. Step 2: Convert to fraction form
    879,080.80/1,318,621.20 = 742,223.20/x
  3. Step 3: Cross multiply
    879,080.80x = 1,318,621.20 × 742,223.20
  4. Step 4: Simplify right side
    879,080.80x = 978,711,246,651.84
  5. Step 5: Solve for x
    x = 978,711,246,651.84/879,080.80
  6. Step 6: Final answer
    x = 1,113,334.80

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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.