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Finding the Fourth Proportional to 517,269.60, 775,904.40 and 458,220.60

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Solution

The fourth proportional to 517,269.60, 775,904.40 and 458,220.60 is: 687,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,269.60 : 775,904.40 = 458,220.60 : x
  2. Step 2: Convert to fraction form
    517,269.60/775,904.40 = 458,220.60/x
  3. Step 3: Cross multiply
    517,269.60x = 775,904.40 × 458,220.60
  4. Step 4: Simplify right side
    517,269.60x = 355,535,379,710.64
  5. Step 5: Solve for x
    x = 355,535,379,710.64/517,269.60
  6. Step 6: Final answer
    x = 687,330.90

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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.