Home / 743,103.72-1,025,489.16-403,574.40

Finding the Fourth Proportional to 743,103.72, 1,025,489.16 and 403,574.40

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Solution

The fourth proportional to 743,103.72, 1,025,489.16 and 403,574.40 is: 556,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,103.72 : 1,025,489.16 = 403,574.40 : x
  2. Step 2: Convert to fraction form
    743,103.72/1,025,489.16 = 403,574.40/x
  3. Step 3: Cross multiply
    743,103.72x = 1,025,489.16 × 403,574.40
  4. Step 4: Simplify right side
    743,103.72x = 413,861,172,453.50
  5. Step 5: Solve for x
    x = 413,861,172,453.50/743,103.72
  6. Step 6: Final answer
    x = 556,935.94

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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.