Home / 686,053.40-1,029,663.30-307,556.60

Finding the Fourth Proportional to 686,053.40, 1,029,663.30 and 307,556.60

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Solution

The fourth proportional to 686,053.40, 1,029,663.30 and 307,556.60 is: 461,596.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,053.40 : 1,029,663.30 = 307,556.60 : x
  2. Step 2: Convert to fraction form
    686,053.40/1,029,663.30 = 307,556.60/x
  3. Step 3: Cross multiply
    686,053.40x = 1,029,663.30 × 307,556.60
  4. Step 4: Simplify right side
    686,053.40x = 316,679,743,692.78
  5. Step 5: Solve for x
    x = 316,679,743,692.78/686,053.40
  6. Step 6: Final answer
    x = 461,596.35

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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.