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Finding the Fourth Proportional to 670,562.76, 925,348.44 and 380,193.86

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Solution

The fourth proportional to 670,562.76, 925,348.44 and 380,193.86 is: 524,651.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,562.76 : 925,348.44 = 380,193.86 : x
  2. Step 2: Convert to fraction form
    670,562.76/925,348.44 = 380,193.86/x
  3. Step 3: Cross multiply
    670,562.76x = 925,348.44 × 380,193.86
  4. Step 4: Simplify right side
    670,562.76x = 351,811,795,248.58
  5. Step 5: Solve for x
    x = 351,811,795,248.58/670,562.76
  6. Step 6: Final answer
    x = 524,651.56

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Double scale
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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.