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Finding the Fourth Proportional to 671,195.72, 926,271.09 and 380,819.52

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Solution

The fourth proportional to 671,195.72, 926,271.09 and 380,819.52 is: 525,542.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,195.72 : 926,271.09 = 380,819.52 : x
  2. Step 2: Convert to fraction form
    671,195.72/926,271.09 = 380,819.52/x
  3. Step 3: Cross multiply
    671,195.72x = 926,271.09 × 380,819.52
  4. Step 4: Simplify right side
    671,195.72x = 352,742,111,883.68
  5. Step 5: Solve for x
    x = 352,742,111,883.68/671,195.72
  6. Step 6: Final answer
    x = 525,542.85

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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.