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Finding the Fourth Proportional to 880,008.76, 1,214,311.70 and 492,770.34

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Solution

The fourth proportional to 880,008.76, 1,214,311.70 and 492,770.34 is: 679,966.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,008.76 : 1,214,311.70 = 492,770.34 : x
  2. Step 2: Convert to fraction form
    880,008.76/1,214,311.70 = 492,770.34/x
  3. Step 3: Cross multiply
    880,008.76x = 1,214,311.70 × 492,770.34
  4. Step 4: Simplify right side
    880,008.76x = 598,376,786,811.13
  5. Step 5: Solve for x
    x = 598,376,786,811.13/880,008.76
  6. Step 6: Final answer
    x = 679,966.85

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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.