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Finding the Fourth Proportional to 723,563.85, 998,492.97 and 401,303.94

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Solution

The fourth proportional to 723,563.85, 998,492.97 and 401,303.94 is: 553,785.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,563.85 : 998,492.97 = 401,303.94 : x
  2. Step 2: Convert to fraction form
    723,563.85/998,492.97 = 401,303.94/x
  3. Step 3: Cross multiply
    723,563.85x = 998,492.97 × 401,303.94
  4. Step 4: Simplify right side
    723,563.85x = 400,699,160,683.84
  5. Step 5: Solve for x
    x = 400,699,160,683.84/723,563.85
  6. Step 6: Final answer
    x = 553,785.49

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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.