Home / 980,425.35-1,353,059.55-550,730.88

Finding the Fourth Proportional to 980,425.35, 1,353,059.55 and 550,730.88

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Solution

The fourth proportional to 980,425.35, 1,353,059.55 and 550,730.88 is: 760,049.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,425.35 : 1,353,059.55 = 550,730.88 : x
  2. Step 2: Convert to fraction form
    980,425.35/1,353,059.55 = 550,730.88/x
  3. Step 3: Cross multiply
    980,425.35x = 1,353,059.55 × 550,730.88
  4. Step 4: Simplify right side
    980,425.35x = 745,171,676,663.90
  5. Step 5: Solve for x
    x = 745,171,676,663.90/980,425.35
  6. Step 6: Final answer
    x = 760,049.38

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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.