Home / 747,653.67-1,115,758.97-667,871.91

Finding the Fourth Proportional to 747,653.67, 1,115,758.97 and 667,871.91

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Solution

The fourth proportional to 747,653.67, 1,115,758.97 and 667,871.91 is: 996,696.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,653.67 : 1,115,758.97 = 667,871.91 : x
  2. Step 2: Convert to fraction form
    747,653.67/1,115,758.97 = 667,871.91/x
  3. Step 3: Cross multiply
    747,653.67x = 1,115,758.97 × 667,871.91
  4. Step 4: Simplify right side
    747,653.67x = 745,184,076,063.21
  5. Step 5: Solve for x
    x = 745,184,076,063.21/747,653.67
  6. Step 6: Final answer
    x = 996,696.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.