Home / 723,619.40-998,656.08-401,433.29

Finding the Fourth Proportional to 723,619.40, 998,656.08 and 401,433.29

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Solution

The fourth proportional to 723,619.40, 998,656.08 and 401,433.29 is: 554,011.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,619.40 : 998,656.08 = 401,433.29 : x
  2. Step 2: Convert to fraction form
    723,619.40/998,656.08 = 401,433.29/x
  3. Step 3: Cross multiply
    723,619.40x = 998,656.08 × 401,433.29
  4. Step 4: Simplify right side
    723,619.40x = 400,893,790,779.62
  5. Step 5: Solve for x
    x = 400,893,790,779.62/723,619.40
  6. Step 6: Final answer
    x = 554,011.95

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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.