Home / 723,609.60-1,085,107.20-349,747.20

Finding the Fourth Proportional to 723,609.60, 1,085,107.20 and 349,747.20

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Solution

The fourth proportional to 723,609.60, 1,085,107.20 and 349,747.20 is: 524,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,609.60 : 1,085,107.20 = 349,747.20 : x
  2. Step 2: Convert to fraction form
    723,609.60/1,085,107.20 = 349,747.20/x
  3. Step 3: Cross multiply
    723,609.60x = 1,085,107.20 × 349,747.20
  4. Step 4: Simplify right side
    723,609.60x = 379,513,204,899.84
  5. Step 5: Solve for x
    x = 379,513,204,899.84/723,609.60
  6. Step 6: Final answer
    x = 524,472.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.