Home / 980,383.15-1,353,055.76-550,663.30

Finding the Fourth Proportional to 980,383.15, 1,353,055.76 and 550,663.30

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Solution

The fourth proportional to 980,383.15, 1,353,055.76 and 550,663.30 is: 759,986.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,383.15 : 1,353,055.76 = 550,663.30 : x
  2. Step 2: Convert to fraction form
    980,383.15/1,353,055.76 = 550,663.30/x
  3. Step 3: Cross multiply
    980,383.15x = 1,353,055.76 × 550,663.30
  4. Step 4: Simplify right side
    980,383.15x = 745,078,149,885.61
  5. Step 5: Solve for x
    x = 745,078,149,885.61/980,383.15
  6. Step 6: Final answer
    x = 759,986.69

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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.