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Finding the Fourth Proportional to 553,400.70, 830,101.05 and 488,082.30

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Solution

The fourth proportional to 553,400.70, 830,101.05 and 488,082.30 is: 732,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,400.70 : 830,101.05 = 488,082.30 : x
  2. Step 2: Convert to fraction form
    553,400.70/830,101.05 = 488,082.30/x
  3. Step 3: Cross multiply
    553,400.70x = 830,101.05 × 488,082.30
  4. Step 4: Simplify right side
    553,400.70x = 405,157,629,716.42
  5. Step 5: Solve for x
    x = 405,157,629,716.42/553,400.70
  6. Step 6: Final answer
    x = 732,123.45

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Similar ratio
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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.