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Finding the Fourth Proportional to 723,605.43, 998,608.83 and 401,296.32

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Solution

The fourth proportional to 723,605.43, 998,608.83 and 401,296.32 is: 553,807.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,605.43 : 998,608.83 = 401,296.32 : x
  2. Step 2: Convert to fraction form
    723,605.43/998,608.83 = 401,296.32/x
  3. Step 3: Cross multiply
    723,605.43x = 998,608.83 × 401,296.32
  4. Step 4: Simplify right side
    723,605.43x = 400,738,048,598.51
  5. Step 5: Solve for x
    x = 400,738,048,598.51/723,605.43
  6. Step 6: Final answer
    x = 553,807.41

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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.