Home / 724,103.79-999,310.13-401,814.64

Finding the Fourth Proportional to 724,103.79, 999,310.13 and 401,814.64

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Solution

The fourth proportional to 724,103.79, 999,310.13 and 401,814.64 is: 554,530.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,103.79 : 999,310.13 = 401,814.64 : x
  2. Step 2: Convert to fraction form
    724,103.79/999,310.13 = 401,814.64/x
  3. Step 3: Cross multiply
    724,103.79x = 999,310.13 × 401,814.64
  4. Step 4: Simplify right side
    724,103.79x = 401,537,440,134.30
  5. Step 5: Solve for x
    x = 401,537,440,134.30/724,103.79
  6. Step 6: Final answer
    x = 554,530.23

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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.