Home / 563,682.57-777,880.13-305,560.53

Finding the Fourth Proportional to 563,682.57, 777,880.13 and 305,560.53

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Solution

The fourth proportional to 563,682.57, 777,880.13 and 305,560.53 is: 421,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,682.57 : 777,880.13 = 305,560.53 : x
  2. Step 2: Convert to fraction form
    563,682.57/777,880.13 = 305,560.53/x
  3. Step 3: Cross multiply
    563,682.57x = 777,880.13 × 305,560.53
  4. Step 4: Simplify right side
    563,682.57x = 237,689,464,799.27
  5. Step 5: Solve for x
    x = 237,689,464,799.27/563,682.57
  6. Step 6: Final answer
    x = 421,672.55

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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.