Home / 740,154.92-1,021,433.69-449,667.59

Finding the Fourth Proportional to 740,154.92, 1,021,433.69 and 449,667.59

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Solution

The fourth proportional to 740,154.92, 1,021,433.69 and 449,667.59 is: 620,553.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,154.92 : 1,021,433.69 = 449,667.59 : x
  2. Step 2: Convert to fraction form
    740,154.92/1,021,433.69 = 449,667.59/x
  3. Step 3: Cross multiply
    740,154.92x = 1,021,433.69 × 449,667.59
  4. Step 4: Simplify right side
    740,154.92x = 459,305,621,744.11
  5. Step 5: Solve for x
    x = 459,305,621,744.11/740,154.92
  6. Step 6: Final answer
    x = 620,553.36

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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.