Home / 1,231,877.58-1,699,744.16-687,929.67

Finding the Fourth Proportional to 1,231,877.58, 1,699,744.16 and 687,929.67

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Solution

The fourth proportional to 1,231,877.58, 1,699,744.16 and 687,929.67 is: 949,205.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,877.58 : 1,699,744.16 = 687,929.67 : x
  2. Step 2: Convert to fraction form
    1,231,877.58/1,699,744.16 = 687,929.67/x
  3. Step 3: Cross multiply
    1,231,877.58x = 1,699,744.16 × 687,929.67
  4. Step 4: Simplify right side
    1,231,877.58x = 1,169,304,439,073.23
  5. Step 5: Solve for x
    x = 1,169,304,439,073.23/1,231,877.58
  6. Step 6: Final answer
    x = 949,205.07

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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.