Home / 980,358.12-1,352,899.62-550,638.36

Finding the Fourth Proportional to 980,358.12, 1,352,899.62 and 550,638.36

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Solution

The fourth proportional to 980,358.12, 1,352,899.62 and 550,638.36 is: 759,883.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,358.12 : 1,352,899.62 = 550,638.36 : x
  2. Step 2: Convert to fraction form
    980,358.12/1,352,899.62 = 550,638.36/x
  3. Step 3: Cross multiply
    980,358.12x = 1,352,899.62 × 550,638.36
  4. Step 4: Simplify right side
    980,358.12x = 744,958,428,001.42
  5. Step 5: Solve for x
    x = 744,958,428,001.42/980,358.12
  6. Step 6: Final answer
    x = 759,883.98

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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.