Home / 674,630.90-1,011,946.35-485,674.10

Finding the Fourth Proportional to 674,630.90, 1,011,946.35 and 485,674.10

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Solution

The fourth proportional to 674,630.90, 1,011,946.35 and 485,674.10 is: 728,511.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,630.90 : 1,011,946.35 = 485,674.10 : x
  2. Step 2: Convert to fraction form
    674,630.90/1,011,946.35 = 485,674.10/x
  3. Step 3: Cross multiply
    674,630.90x = 1,011,946.35 × 485,674.10
  4. Step 4: Simplify right side
    674,630.90x = 491,476,132,784.54
  5. Step 5: Solve for x
    x = 491,476,132,784.54/674,630.90
  6. Step 6: Final answer
    x = 728,511.15

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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.