Home / 1,086,326.40-1,629,878.40-455,433.60

Finding the Fourth Proportional to 1,086,326.40, 1,629,878.40 and 455,433.60

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Solution

The fourth proportional to 1,086,326.40, 1,629,878.40 and 455,433.60 is: 683,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,326.40 : 1,629,878.40 = 455,433.60 : x
  2. Step 2: Convert to fraction form
    1,086,326.40/1,629,878.40 = 455,433.60/x
  3. Step 3: Cross multiply
    1,086,326.40x = 1,629,878.40 × 455,433.60
  4. Step 4: Simplify right side
    1,086,326.40x = 742,301,387,274.24
  5. Step 5: Solve for x
    x = 742,301,387,274.24/1,086,326.40
  6. Step 6: Final answer
    x = 683,313.40

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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.