Home / 751,985.12-1,037,732.39-407,828.64

Finding the Fourth Proportional to 751,985.12, 1,037,732.39 and 407,828.64

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Solution

The fourth proportional to 751,985.12, 1,037,732.39 and 407,828.64 is: 562,799.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,985.12 : 1,037,732.39 = 407,828.64 : x
  2. Step 2: Convert to fraction form
    751,985.12/1,037,732.39 = 407,828.64/x
  3. Step 3: Cross multiply
    751,985.12x = 1,037,732.39 × 407,828.64
  4. Step 4: Simplify right side
    751,985.12x = 423,216,987,258.51
  5. Step 5: Solve for x
    x = 423,216,987,258.51/751,985.12
  6. Step 6: Final answer
    x = 562,799.69

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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.