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Finding the Fourth Proportional to 671,092.38, 926,122.91 and 380,723.40

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Solution

The fourth proportional to 671,092.38, 926,122.91 and 380,723.40 is: 525,407.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,092.38 : 926,122.91 = 380,723.40 : x
  2. Step 2: Convert to fraction form
    671,092.38/926,122.91 = 380,723.40/x
  3. Step 3: Cross multiply
    671,092.38x = 926,122.91 × 380,723.40
  4. Step 4: Simplify right side
    671,092.38x = 352,596,661,209.48
  5. Step 5: Solve for x
    x = 352,596,661,209.48/671,092.38
  6. Step 6: Final answer
    x = 525,407.04

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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.