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Finding the Fourth Proportional to 723,564.25, 998,518.67 and 401,323.69

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Solution

The fourth proportional to 723,564.25, 998,518.67 and 401,323.69 is: 553,826.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,564.25 : 998,518.67 = 401,323.69 : x
  2. Step 2: Convert to fraction form
    723,564.25/998,518.67 = 401,323.69/x
  3. Step 3: Cross multiply
    723,564.25x = 998,518.67 × 401,323.69
  4. Step 4: Simplify right side
    723,564.25x = 400,729,197,178.29
  5. Step 5: Solve for x
    x = 400,729,197,178.29/723,564.25
  6. Step 6: Final answer
    x = 553,826.69

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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.