Home / 756,505.32-1,134,139.64-351,949.72

Finding the Fourth Proportional to 756,505.32, 1,134,139.64 and 351,949.72

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Solution

The fourth proportional to 756,505.32, 1,134,139.64 and 351,949.72 is: 527,636.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,505.32 : 1,134,139.64 = 351,949.72 : x
  2. Step 2: Convert to fraction form
    756,505.32/1,134,139.64 = 351,949.72/x
  3. Step 3: Cross multiply
    756,505.32x = 1,134,139.64 × 351,949.72
  4. Step 4: Simplify right side
    756,505.32x = 399,160,128,738.90
  5. Step 5: Solve for x
    x = 399,160,128,738.90/756,505.32
  6. Step 6: Final answer
    x = 527,636.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.