Home / 723,680.45-998,798.60-401,494.35

Finding the Fourth Proportional to 723,680.45, 998,798.60 and 401,494.35

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Solution

The fourth proportional to 723,680.45, 998,798.60 and 401,494.35 is: 554,128.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,680.45 : 998,798.60 = 401,494.35 : x
  2. Step 2: Convert to fraction form
    723,680.45/998,798.60 = 401,494.35/x
  3. Step 3: Cross multiply
    723,680.45x = 998,798.60 × 401,494.35
  4. Step 4: Simplify right side
    723,680.45x = 401,011,992,680.44
  5. Step 5: Solve for x
    x = 401,011,992,680.44/723,680.45
  6. Step 6: Final answer
    x = 554,128.54

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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.