Home / 907,489.16-1,358,855.58-639,800.36

Finding the Fourth Proportional to 907,489.16, 1,358,855.58 and 639,800.36

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Solution

The fourth proportional to 907,489.16, 1,358,855.58 and 639,800.36 is: 958,023.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,489.16 : 1,358,855.58 = 639,800.36 : x
  2. Step 2: Convert to fraction form
    907,489.16/1,358,855.58 = 639,800.36/x
  3. Step 3: Cross multiply
    907,489.16x = 1,358,855.58 × 639,800.36
  4. Step 4: Simplify right side
    907,489.16x = 869,396,289,272.01
  5. Step 5: Solve for x
    x = 869,396,289,272.01/907,489.16
  6. Step 6: Final answer
    x = 958,023.88

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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.