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Finding the Fourth Proportional to 509,605.60, 764,408.40 and 154,602.40

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Solution

The fourth proportional to 509,605.60, 764,408.40 and 154,602.40 is: 231,903.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,605.60 : 764,408.40 = 154,602.40 : x
  2. Step 2: Convert to fraction form
    509,605.60/764,408.40 = 154,602.40/x
  3. Step 3: Cross multiply
    509,605.60x = 764,408.40 × 154,602.40
  4. Step 4: Simplify right side
    509,605.60x = 118,179,373,220.16
  5. Step 5: Solve for x
    x = 118,179,373,220.16/509,605.60
  6. Step 6: Final answer
    x = 231,903.60

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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.