Home / 1,159,694.62-1,600,391.56-643,457.86

Finding the Fourth Proportional to 1,159,694.62, 1,600,391.56 and 643,457.86

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Solution

The fourth proportional to 1,159,694.62, 1,600,391.56 and 643,457.86 is: 887,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,694.62 : 1,600,391.56 = 643,457.86 : x
  2. Step 2: Convert to fraction form
    1,159,694.62/1,600,391.56 = 643,457.86/x
  3. Step 3: Cross multiply
    1,159,694.62x = 1,600,391.56 × 643,457.86
  4. Step 4: Simplify right side
    1,159,694.62x = 1,029,784,528,359.66
  5. Step 5: Solve for x
    x = 1,029,784,528,359.66/1,159,694.62
  6. Step 6: Final answer
    x = 887,979.05

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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.