Home / 430,717.34-646,078.44-383,551.04

Finding the Fourth Proportional to 430,717.34, 646,078.44 and 383,551.04

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Solution

The fourth proportional to 430,717.34, 646,078.44 and 383,551.04 is: 575,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,717.34 : 646,078.44 = 383,551.04 : x
  2. Step 2: Convert to fraction form
    430,717.34/646,078.44 = 383,551.04/x
  3. Step 3: Cross multiply
    430,717.34x = 646,078.44 × 383,551.04
  4. Step 4: Simplify right side
    430,717.34x = 247,804,057,583.58
  5. Step 5: Solve for x
    x = 247,804,057,583.58/430,717.34
  6. Step 6: Final answer
    x = 575,328.72

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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.