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Finding the Fourth Proportional to 662,419.70, 993,683.55 and 283,343.30

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Solution

The fourth proportional to 662,419.70, 993,683.55 and 283,343.30 is: 425,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,419.70 : 993,683.55 = 283,343.30 : x
  2. Step 2: Convert to fraction form
    662,419.70/993,683.55 = 283,343.30/x
  3. Step 3: Cross multiply
    662,419.70x = 993,683.55 × 283,343.30
  4. Step 4: Simplify right side
    662,419.70x = 281,553,576,212.72
  5. Step 5: Solve for x
    x = 281,553,576,212.72/662,419.70
  6. Step 6: Final answer
    x = 425,038.05

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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.