Home / 723,720.08-998,749.68-401,419.64

Finding the Fourth Proportional to 723,720.08, 998,749.68 and 401,419.64

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Solution

The fourth proportional to 723,720.08, 998,749.68 and 401,419.64 is: 553,967.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,720.08 : 998,749.68 = 401,419.64 : x
  2. Step 2: Convert to fraction form
    723,720.08/998,749.68 = 401,419.64/x
  3. Step 3: Cross multiply
    723,720.08x = 998,749.68 × 401,419.64
  4. Step 4: Simplify right side
    723,720.08x = 400,917,736,995.72
  5. Step 5: Solve for x
    x = 400,917,736,995.72/723,720.08
  6. Step 6: Final answer
    x = 553,967.96

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1.5x scale

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.