Home / 1,429,114.64-1,972,379.40-817,396.16

Finding the Fourth Proportional to 1,429,114.64, 1,972,379.40 and 817,396.16

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Solution

The fourth proportional to 1,429,114.64, 1,972,379.40 and 817,396.16 is: 1,128,121.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,114.64 : 1,972,379.40 = 817,396.16 : x
  2. Step 2: Convert to fraction form
    1,429,114.64/1,972,379.40 = 817,396.16/x
  3. Step 3: Cross multiply
    1,429,114.64x = 1,972,379.40 × 817,396.16
  4. Step 4: Simplify right side
    1,429,114.64x = 1,612,215,347,623.10
  5. Step 5: Solve for x
    x = 1,612,215,347,623.10/1,429,114.64
  6. Step 6: Final answer
    x = 1,128,121.78

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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.