Home / 672,567.47-928,096.63-378,261.26

Finding the Fourth Proportional to 672,567.47, 928,096.63 and 378,261.26

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Solution

The fourth proportional to 672,567.47, 928,096.63 and 378,261.26 is: 521,974.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,567.47 : 928,096.63 = 378,261.26 : x
  2. Step 2: Convert to fraction form
    672,567.47/928,096.63 = 378,261.26/x
  3. Step 3: Cross multiply
    672,567.47x = 928,096.63 × 378,261.26
  4. Step 4: Simplify right side
    672,567.47x = 351,063,000,687.50
  5. Step 5: Solve for x
    x = 351,063,000,687.50/672,567.47
  6. Step 6: Final answer
    x = 521,974.40

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Double scale
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Similar ratio
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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.