Home / 689,098.60-1,031,315.10-605,117.80

Finding the Fourth Proportional to 689,098.60, 1,031,315.10 and 605,117.80

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Solution

The fourth proportional to 689,098.60, 1,031,315.10 and 605,117.80 is: 905,628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,098.60 : 1,031,315.10 = 605,117.80 : x
  2. Step 2: Convert to fraction form
    689,098.60/1,031,315.10 = 605,117.80/x
  3. Step 3: Cross multiply
    689,098.60x = 1,031,315.10 × 605,117.80
  4. Step 4: Simplify right side
    689,098.60x = 624,067,124,418.78
  5. Step 5: Solve for x
    x = 624,067,124,418.78/689,098.60
  6. Step 6: Final answer
    x = 905,628.20

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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.