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Finding the Fourth Proportional to 671,096.30, 926,128.74 and 380,727.47

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Solution

The fourth proportional to 671,096.30, 926,128.74 and 380,727.47 is: 525,412.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,096.30 : 926,128.74 = 380,727.47 : x
  2. Step 2: Convert to fraction form
    671,096.30/926,128.74 = 380,727.47/x
  3. Step 3: Cross multiply
    671,096.30x = 926,128.74 × 380,727.47
  4. Step 4: Simplify right side
    671,096.30x = 352,602,645,540.21
  5. Step 5: Solve for x
    x = 352,602,645,540.21/671,096.30
  6. Step 6: Final answer
    x = 525,412.89

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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.