Home / 563,143.85-777,132.32-305,014.37

Finding the Fourth Proportional to 563,143.85, 777,132.32 and 305,014.37

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Solution

The fourth proportional to 563,143.85, 777,132.32 and 305,014.37 is: 420,916.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,143.85 : 777,132.32 = 305,014.37 : x
  2. Step 2: Convert to fraction form
    563,143.85/777,132.32 = 305,014.37/x
  3. Step 3: Cross multiply
    563,143.85x = 777,132.32 × 305,014.37
  4. Step 4: Simplify right side
    563,143.85x = 237,036,524,991.44
  5. Step 5: Solve for x
    x = 237,036,524,991.44/563,143.85
  6. Step 6: Final answer
    x = 420,916.48

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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.