Home / 1,121,416.20-1,682,148.14-401,804.78

Finding the Fourth Proportional to 1,121,416.20, 1,682,148.14 and 401,804.78

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Solution

The fourth proportional to 1,121,416.20, 1,682,148.14 and 401,804.78 is: 602,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,416.20 : 1,682,148.14 = 401,804.78 : x
  2. Step 2: Convert to fraction form
    1,121,416.20/1,682,148.14 = 401,804.78/x
  3. Step 3: Cross multiply
    1,121,416.20x = 1,682,148.14 × 401,804.78
  4. Step 4: Simplify right side
    1,121,416.20x = 675,895,152,900.35
  5. Step 5: Solve for x
    x = 675,895,152,900.35/1,121,416.20
  6. Step 6: Final answer
    x = 602,715.70

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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.