Home / 1,255,345.70-1,882,932.15-402,404.90

Finding the Fourth Proportional to 1,255,345.70, 1,882,932.15 and 402,404.90

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Solution

The fourth proportional to 1,255,345.70, 1,882,932.15 and 402,404.90 is: 603,579.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,345.70 : 1,882,932.15 = 402,404.90 : x
  2. Step 2: Convert to fraction form
    1,255,345.70/1,882,932.15 = 402,404.90/x
  3. Step 3: Cross multiply
    1,255,345.70x = 1,882,932.15 × 402,404.90
  4. Step 4: Simplify right side
    1,255,345.70x = 757,701,123,527.54
  5. Step 5: Solve for x
    x = 757,701,123,527.54/1,255,345.70
  6. Step 6: Final answer
    x = 603,579.65

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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.