Home / 563,311.20-777,364.20-305,182.20

Finding the Fourth Proportional to 563,311.20, 777,364.20 and 305,182.20

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Solution

The fourth proportional to 563,311.20, 777,364.20 and 305,182.20 is: 421,148.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,311.20 : 777,364.20 = 305,182.20 : x
  2. Step 2: Convert to fraction form
    563,311.20/777,364.20 = 305,182.20/x
  3. Step 3: Cross multiply
    563,311.20x = 777,364.20 × 305,182.20
  4. Step 4: Simplify right side
    563,311.20x = 237,237,716,757.24
  5. Step 5: Solve for x
    x = 237,237,716,757.24/563,311.20
  6. Step 6: Final answer
    x = 421,148.59

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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.