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Finding the Fourth Proportional to 723,322.04, 998,179.61 and 401,032.22

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Solution

The fourth proportional to 723,322.04, 998,179.61 and 401,032.22 is: 553,421.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,322.04 : 998,179.61 = 401,032.22 : x
  2. Step 2: Convert to fraction form
    723,322.04/998,179.61 = 401,032.22/x
  3. Step 3: Cross multiply
    723,322.04x = 998,179.61 × 401,032.22
  4. Step 4: Simplify right side
    723,322.04x = 400,302,177,960.98
  5. Step 5: Solve for x
    x = 400,302,177,960.98/723,322.04
  6. Step 6: Final answer
    x = 553,421.79

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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.