Home / 430,719.34-646,081.44-383,553.04

Finding the Fourth Proportional to 430,719.34, 646,081.44 and 383,553.04

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Solution

The fourth proportional to 430,719.34, 646,081.44 and 383,553.04 is: 575,331.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,719.34 : 646,081.44 = 383,553.04 : x
  2. Step 2: Convert to fraction form
    430,719.34/646,081.44 = 383,553.04/x
  3. Step 3: Cross multiply
    430,719.34x = 646,081.44 × 383,553.04
  4. Step 4: Simplify right side
    430,719.34x = 247,806,500,399.58
  5. Step 5: Solve for x
    x = 247,806,500,399.58/430,719.34
  6. Step 6: Final answer
    x = 575,331.72

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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.