Home / 816,636.80-1,224,080.40-367,281.20

Finding the Fourth Proportional to 816,636.80, 1,224,080.40 and 367,281.20

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Solution

The fourth proportional to 816,636.80, 1,224,080.40 and 367,281.20 is: 550,528.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,636.80 : 1,224,080.40 = 367,281.20 : x
  2. Step 2: Convert to fraction form
    816,636.80/1,224,080.40 = 367,281.20/x
  3. Step 3: Cross multiply
    816,636.80x = 1,224,080.40 × 367,281.20
  4. Step 4: Simplify right side
    816,636.80x = 449,581,718,208.48
  5. Step 5: Solve for x
    x = 449,581,718,208.48/816,636.80
  6. Step 6: Final answer
    x = 550,528.36

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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.