Home / 689,145.60-1,031,644.80-606,201.60

Finding the Fourth Proportional to 689,145.60, 1,031,644.80 and 606,201.60

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Solution

The fourth proportional to 689,145.60, 1,031,644.80 and 606,201.60 is: 907,478.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,145.60 : 1,031,644.80 = 606,201.60 : x
  2. Step 2: Convert to fraction form
    689,145.60/1,031,644.80 = 606,201.60/x
  3. Step 3: Cross multiply
    689,145.60x = 1,031,644.80 × 606,201.60
  4. Step 4: Simplify right side
    689,145.60x = 625,384,728,391.68
  5. Step 5: Solve for x
    x = 625,384,728,391.68/689,145.60
  6. Step 6: Final answer
    x = 907,478.37

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1.5x scale

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.