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Finding the Fourth Proportional to 670,600.93, 925,391.89 and 384,139.47

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Solution

The fourth proportional to 670,600.93, 925,391.89 and 384,139.47 is: 530,091.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,600.93 : 925,391.89 = 384,139.47 : x
  2. Step 2: Convert to fraction form
    670,600.93/925,391.89 = 384,139.47/x
  3. Step 3: Cross multiply
    670,600.93x = 925,391.89 × 384,139.47
  4. Step 4: Simplify right side
    670,600.93x = 355,479,548,726.38
  5. Step 5: Solve for x
    x = 355,479,548,726.38/670,600.93
  6. Step 6: Final answer
    x = 530,091.05

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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.