Home / 674,630.40-1,011,945.60-485,673.60

Finding the Fourth Proportional to 674,630.40, 1,011,945.60 and 485,673.60

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Solution

The fourth proportional to 674,630.40, 1,011,945.60 and 485,673.60 is: 728,510.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,630.40 : 1,011,945.60 = 485,673.60 : x
  2. Step 2: Convert to fraction form
    674,630.40/1,011,945.60 = 485,673.60/x
  3. Step 3: Cross multiply
    674,630.40x = 1,011,945.60 × 485,673.60
  4. Step 4: Simplify right side
    674,630.40x = 491,475,262,556.16
  5. Step 5: Solve for x
    x = 491,475,262,556.16/674,630.40
  6. Step 6: Final answer
    x = 728,510.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.