Home / 563,146.85-777,136.46-305,017.37

Finding the Fourth Proportional to 563,146.85, 777,136.46 and 305,017.37

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Solution

The fourth proportional to 563,146.85, 777,136.46 and 305,017.37 is: 420,920.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,146.85 : 777,136.46 = 305,017.37 : x
  2. Step 2: Convert to fraction form
    563,146.85/777,136.46 = 305,017.37/x
  3. Step 3: Cross multiply
    563,146.85x = 777,136.46 × 305,017.37
  4. Step 4: Simplify right side
    563,146.85x = 237,040,119,160.31
  5. Step 5: Solve for x
    x = 237,040,119,160.31/563,146.85
  6. Step 6: Final answer
    x = 420,920.62

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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.