Home / 723,719.08-998,748.30-401,418.64

Finding the Fourth Proportional to 723,719.08, 998,748.30 and 401,418.64

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Solution

The fourth proportional to 723,719.08, 998,748.30 and 401,418.64 is: 553,966.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,719.08 : 998,748.30 = 401,418.64 : x
  2. Step 2: Convert to fraction form
    723,719.08/998,748.30 = 401,418.64/x
  3. Step 3: Cross multiply
    723,719.08x = 998,748.30 × 401,418.64
  4. Step 4: Simplify right side
    723,719.08x = 400,916,184,288.31
  5. Step 5: Solve for x
    x = 400,916,184,288.31/723,719.08
  6. Step 6: Final answer
    x = 553,966.58

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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.