Home / 401,214.13-553,352.64-352,712.36

Finding the Fourth Proportional to 401,214.13, 553,352.64 and 352,712.36

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Solution

The fourth proportional to 401,214.13, 553,352.64 and 352,712.36 is: 486,459.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,214.13 : 553,352.64 = 352,712.36 : x
  2. Step 2: Convert to fraction form
    401,214.13/553,352.64 = 352,712.36/x
  3. Step 3: Cross multiply
    401,214.13x = 553,352.64 × 352,712.36
  4. Step 4: Simplify right side
    401,214.13x = 195,174,312,799.87
  5. Step 5: Solve for x
    x = 195,174,312,799.87/401,214.13
  6. Step 6: Final answer
    x = 486,459.22

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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.