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Finding the Fourth Proportional to 671,242.89, 926,106.30 and 380,806.41

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Solution

The fourth proportional to 671,242.89, 926,106.30 and 380,806.41 is: 525,394.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,242.89 : 926,106.30 = 380,806.41 : x
  2. Step 2: Convert to fraction form
    671,242.89/926,106.30 = 380,806.41/x
  3. Step 3: Cross multiply
    671,242.89x = 926,106.30 × 380,806.41
  4. Step 4: Simplify right side
    671,242.89x = 352,667,215,381.38
  5. Step 5: Solve for x
    x = 352,667,215,381.38/671,242.89
  6. Step 6: Final answer
    x = 525,394.34

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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.