Home / 769,429.40-1,061,867.54-425,257.92

Finding the Fourth Proportional to 769,429.40, 1,061,867.54 and 425,257.92

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Solution

The fourth proportional to 769,429.40, 1,061,867.54 and 425,257.92 is: 586,886.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,429.40 : 1,061,867.54 = 425,257.92 : x
  2. Step 2: Convert to fraction form
    769,429.40/1,061,867.54 = 425,257.92/x
  3. Step 3: Cross multiply
    769,429.40x = 1,061,867.54 × 425,257.92
  4. Step 4: Simplify right side
    769,429.40x = 451,567,582,439.06
  5. Step 5: Solve for x
    x = 451,567,582,439.06/769,429.40
  6. Step 6: Final answer
    x = 586,886.32

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1.5x scale

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.