Home / 917,578.80-1,376,368.20-664,324.20

Finding the Fourth Proportional to 917,578.80, 1,376,368.20 and 664,324.20

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Solution

The fourth proportional to 917,578.80, 1,376,368.20 and 664,324.20 is: 996,486.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,578.80 : 1,376,368.20 = 664,324.20 : x
  2. Step 2: Convert to fraction form
    917,578.80/1,376,368.20 = 664,324.20/x
  3. Step 3: Cross multiply
    917,578.80x = 1,376,368.20 × 664,324.20
  4. Step 4: Simplify right side
    917,578.80x = 914,354,703,370.44
  5. Step 5: Solve for x
    x = 914,354,703,370.44/917,578.80
  6. Step 6: Final answer
    x = 996,486.30

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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.