Home / 769,428.46-1,061,866.25-425,256.98

Finding the Fourth Proportional to 769,428.46, 1,061,866.25 and 425,256.98

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Solution

The fourth proportional to 769,428.46, 1,061,866.25 and 425,256.98 is: 586,885.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,428.46 : 1,061,866.25 = 425,256.98 : x
  2. Step 2: Convert to fraction form
    769,428.46/1,061,866.25 = 425,256.98/x
  3. Step 3: Cross multiply
    769,428.46x = 1,061,866.25 × 425,256.98
  4. Step 4: Simplify right side
    769,428.46x = 451,566,038,356.73
  5. Step 5: Solve for x
    x = 451,566,038,356.73/769,428.46
  6. Step 6: Final answer
    x = 586,885.02

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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.