Home / 980,498.66-1,353,214.56-550,778.66

Finding the Fourth Proportional to 980,498.66, 1,353,214.56 and 550,778.66

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Solution

The fourth proportional to 980,498.66, 1,353,214.56 and 550,778.66 is: 760,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,498.66 : 1,353,214.56 = 550,778.66 : x
  2. Step 2: Convert to fraction form
    980,498.66/1,353,214.56 = 550,778.66/x
  3. Step 3: Cross multiply
    980,498.66x = 1,353,214.56 × 550,778.66
  4. Step 4: Simplify right side
    980,498.66x = 745,321,702,049.29
  5. Step 5: Solve for x
    x = 745,321,702,049.29/980,498.66
  6. Step 6: Final answer
    x = 760,145.56

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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.