Home / 979,948.80-1,352,246.40-550,195.20

Finding the Fourth Proportional to 979,948.80, 1,352,246.40 and 550,195.20

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Solution

The fourth proportional to 979,948.80, 1,352,246.40 and 550,195.20 is: 759,222.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,948.80 : 1,352,246.40 = 550,195.20 : x
  2. Step 2: Convert to fraction form
    979,948.80/1,352,246.40 = 550,195.20/x
  3. Step 3: Cross multiply
    979,948.80x = 1,352,246.40 × 550,195.20
  4. Step 4: Simplify right side
    979,948.80x = 743,999,478,497.28
  5. Step 5: Solve for x
    x = 743,999,478,497.28/979,948.80
  6. Step 6: Final answer
    x = 759,222.81

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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.