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Finding the Fourth Proportional to 662,511.90, 993,897.45 and 283,431.90

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Solution

The fourth proportional to 662,511.90, 993,897.45 and 283,431.90 is: 425,203.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,511.90 : 993,897.45 = 283,431.90 : x
  2. Step 2: Convert to fraction form
    662,511.90/993,897.45 = 283,431.90/x
  3. Step 3: Cross multiply
    662,511.90x = 993,897.45 × 283,431.90
  4. Step 4: Simplify right side
    662,511.90x = 281,702,242,658.66
  5. Step 5: Solve for x
    x = 281,702,242,658.66/662,511.90
  6. Step 6: Final answer
    x = 425,203.29

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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.