Home / 743,105.72-1,025,491.92-403,576.40

Finding the Fourth Proportional to 743,105.72, 1,025,491.92 and 403,576.40

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Solution

The fourth proportional to 743,105.72, 1,025,491.92 and 403,576.40 is: 556,938.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,105.72 : 1,025,491.92 = 403,576.40 : x
  2. Step 2: Convert to fraction form
    743,105.72/1,025,491.92 = 403,576.40/x
  3. Step 3: Cross multiply
    743,105.72x = 1,025,491.92 × 403,576.40
  4. Step 4: Simplify right side
    743,105.72x = 413,864,337,302.69
  5. Step 5: Solve for x
    x = 413,864,337,302.69/743,105.72
  6. Step 6: Final answer
    x = 556,938.70

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Double scale
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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.