Home / 1,100,373.76-1,518,785.88-670,890.68

Finding the Fourth Proportional to 1,100,373.76, 1,518,785.88 and 670,890.68

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Solution

The fourth proportional to 1,100,373.76, 1,518,785.88 and 670,890.68 is: 925,993.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,373.76 : 1,518,785.88 = 670,890.68 : x
  2. Step 2: Convert to fraction form
    1,100,373.76/1,518,785.88 = 670,890.68/x
  3. Step 3: Cross multiply
    1,100,373.76x = 1,518,785.88 × 670,890.68
  4. Step 4: Simplify right side
    1,100,373.76x = 1,018,939,291,807.60
  5. Step 5: Solve for x
    x = 1,018,939,291,807.60/1,100,373.76
  6. Step 6: Final answer
    x = 925,993.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.