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Finding the Fourth Proportional to 723,352.82, 998,225.17 and 401,054.63

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Solution

The fourth proportional to 723,352.82, 998,225.17 and 401,054.63 is: 553,454.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,352.82 : 998,225.17 = 401,054.63 : x
  2. Step 2: Convert to fraction form
    723,352.82/998,225.17 = 401,054.63/x
  3. Step 3: Cross multiply
    723,352.82x = 998,225.17 × 401,054.63
  4. Step 4: Simplify right side
    723,352.82x = 400,342,820,217.28
  5. Step 5: Solve for x
    x = 400,342,820,217.28/723,352.82
  6. Step 6: Final answer
    x = 553,454.43

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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.