Home / 666,634.62-1,000,511.89-287,841.66

Finding the Fourth Proportional to 666,634.62, 1,000,511.89 and 287,841.66

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Solution

The fourth proportional to 666,634.62, 1,000,511.89 and 287,841.66 is: 432,004.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,634.62 : 1,000,511.89 = 287,841.66 : x
  2. Step 2: Convert to fraction form
    666,634.62/1,000,511.89 = 287,841.66/x
  3. Step 3: Cross multiply
    666,634.62x = 1,000,511.89 × 287,841.66
  4. Step 4: Simplify right side
    666,634.62x = 287,989,003,267.34
  5. Step 5: Solve for x
    x = 287,989,003,267.34/666,634.62
  6. Step 6: Final answer
    x = 432,004.27

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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.