Home / 1,296,021.60-1,944,032.40-817,724.70

Finding the Fourth Proportional to 1,296,021.60, 1,944,032.40 and 817,724.70

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Solution

The fourth proportional to 1,296,021.60, 1,944,032.40 and 817,724.70 is: 1,226,587.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,021.60 : 1,944,032.40 = 817,724.70 : x
  2. Step 2: Convert to fraction form
    1,296,021.60/1,944,032.40 = 817,724.70/x
  3. Step 3: Cross multiply
    1,296,021.60x = 1,944,032.40 × 817,724.70
  4. Step 4: Simplify right side
    1,296,021.60x = 1,589,683,311,080.28
  5. Step 5: Solve for x
    x = 1,589,683,311,080.28/1,296,021.60
  6. Step 6: Final answer
    x = 1,226,587.05

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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.