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Finding the Fourth Proportional to 550,577.70, 825,866.55 and 340,625.70

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Solution

The fourth proportional to 550,577.70, 825,866.55 and 340,625.70 is: 510,938.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,577.70 : 825,866.55 = 340,625.70 : x
  2. Step 2: Convert to fraction form
    550,577.70/825,866.55 = 340,625.70/x
  3. Step 3: Cross multiply
    550,577.70x = 825,866.55 × 340,625.70
  4. Step 4: Simplify right side
    550,577.70x = 281,311,371,700.34
  5. Step 5: Solve for x
    x = 281,311,371,700.34/550,577.70
  6. Step 6: Final answer
    x = 510,938.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.