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Finding the Fourth Proportional to 723,583.04, 998,605.94 and 401,396.95

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Solution

The fourth proportional to 723,583.04, 998,605.94 and 401,396.95 is: 553,961.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,583.04 : 998,605.94 = 401,396.95 : x
  2. Step 2: Convert to fraction form
    723,583.04/998,605.94 = 401,396.95/x
  3. Step 3: Cross multiply
    723,583.04x = 998,605.94 × 401,396.95
  4. Step 4: Simplify right side
    723,583.04x = 400,837,378,567.88
  5. Step 5: Solve for x
    x = 400,837,378,567.88/723,583.04
  6. Step 6: Final answer
    x = 553,961.82

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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.