Home / 1,352,891.20-1,864,821.78-917,175.16

Finding the Fourth Proportional to 1,352,891.20, 1,864,821.78 and 917,175.16

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Solution

The fourth proportional to 1,352,891.20, 1,864,821.78 and 917,175.16 is: 1,264,231.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,891.20 : 1,864,821.78 = 917,175.16 : x
  2. Step 2: Convert to fraction form
    1,352,891.20/1,864,821.78 = 917,175.16/x
  3. Step 3: Cross multiply
    1,352,891.20x = 1,864,821.78 × 917,175.16
  4. Step 4: Simplify right side
    1,352,891.20x = 1,710,368,214,442.99
  5. Step 5: Solve for x
    x = 1,710,368,214,442.99/1,352,891.20
  6. Step 6: Final answer
    x = 1,264,231.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.