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Finding the Fourth Proportional to 662,401.90, 993,732.45 and 283,321.90

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Solution

The fourth proportional to 662,401.90, 993,732.45 and 283,321.90 is: 425,038.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,401.90 : 993,732.45 = 283,321.90 : x
  2. Step 2: Convert to fraction form
    662,401.90/993,732.45 = 283,321.90/x
  3. Step 3: Cross multiply
    662,401.90x = 993,732.45 × 283,321.90
  4. Step 4: Simplify right side
    662,401.90x = 281,546,165,825.66
  5. Step 5: Solve for x
    x = 281,546,165,825.66/662,401.90
  6. Step 6: Final answer
    x = 425,038.28

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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.