Home / 1,297,612.64-1,790,732.32-724,653.36

Finding the Fourth Proportional to 1,297,612.64, 1,790,732.32 and 724,653.36

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Solution

The fourth proportional to 1,297,612.64, 1,790,732.32 and 724,653.36 is: 1,000,036.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,612.64 : 1,790,732.32 = 724,653.36 : x
  2. Step 2: Convert to fraction form
    1,297,612.64/1,790,732.32 = 724,653.36/x
  3. Step 3: Cross multiply
    1,297,612.64x = 1,790,732.32 × 724,653.36
  4. Step 4: Simplify right side
    1,297,612.64x = 1,297,660,192,548.60
  5. Step 5: Solve for x
    x = 1,297,660,192,548.60/1,297,612.64
  6. Step 6: Final answer
    x = 1,000,036.65

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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.