Home / 979,778.88-1,352,172.96-550,087.20

Finding the Fourth Proportional to 979,778.88, 1,352,172.96 and 550,087.20

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Solution

The fourth proportional to 979,778.88, 1,352,172.96 and 550,087.20 is: 759,164.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,778.88 : 1,352,172.96 = 550,087.20 : x
  2. Step 2: Convert to fraction form
    979,778.88/1,352,172.96 = 550,087.20/x
  3. Step 3: Cross multiply
    979,778.88x = 1,352,172.96 × 550,087.20
  4. Step 4: Simplify right side
    979,778.88x = 743,813,037,482.11
  5. Step 5: Solve for x
    x = 743,813,037,482.11/979,778.88
  6. Step 6: Final answer
    x = 759,164.19

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1.5x scale

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.