Home / 769,428.53-1,061,866.32-425,257.07

Finding the Fourth Proportional to 769,428.53, 1,061,866.32 and 425,257.07

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Solution

The fourth proportional to 769,428.53, 1,061,866.32 and 425,257.07 is: 586,885.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,428.53 : 1,061,866.32 = 425,257.07 : x
  2. Step 2: Convert to fraction form
    769,428.53/1,061,866.32 = 425,257.07/x
  3. Step 3: Cross multiply
    769,428.53x = 1,061,866.32 × 425,257.07
  4. Step 4: Simplify right side
    769,428.53x = 451,566,157,453.91
  5. Step 5: Solve for x
    x = 451,566,157,453.91/769,428.53
  6. Step 6: Final answer
    x = 586,885.12

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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.