Home / 1,398,171.63-2,099,221.13-715,546.74

Finding the Fourth Proportional to 1,398,171.63, 2,099,221.13 and 715,546.74

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Solution

The fourth proportional to 1,398,171.63, 2,099,221.13 and 715,546.74 is: 1,074,325.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,171.63 : 2,099,221.13 = 715,546.74 : x
  2. Step 2: Convert to fraction form
    1,398,171.63/2,099,221.13 = 715,546.74/x
  3. Step 3: Cross multiply
    1,398,171.63x = 2,099,221.13 × 715,546.74
  4. Step 4: Simplify right side
    1,398,171.63x = 1,502,090,836,110.62
  5. Step 5: Solve for x
    x = 1,502,090,836,110.62/1,398,171.63
  6. Step 6: Final answer
    x = 1,074,325.07

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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.