Home / 746,429.58-1,119,974.85-391,358.79

Finding the Fourth Proportional to 746,429.58, 1,119,974.85 and 391,358.79

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Solution

The fourth proportional to 746,429.58, 1,119,974.85 and 391,358.79 is: 587,211.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,429.58 : 1,119,974.85 = 391,358.79 : x
  2. Step 2: Convert to fraction form
    746,429.58/1,119,974.85 = 391,358.79/x
  3. Step 3: Cross multiply
    746,429.58x = 1,119,974.85 × 391,358.79
  4. Step 4: Simplify right side
    746,429.58x = 438,312,002,126.43
  5. Step 5: Solve for x
    x = 438,312,002,126.43/746,429.58
  6. Step 6: Final answer
    x = 587,211.46

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1.5x scale

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.