Home / 1,429,740.40-2,141,344.32-682,311.28

Finding the Fourth Proportional to 1,429,740.40, 2,141,344.32 and 682,311.28

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Solution

The fourth proportional to 1,429,740.40, 2,141,344.32 and 682,311.28 is: 1,021,908.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,740.40 : 2,141,344.32 = 682,311.28 : x
  2. Step 2: Convert to fraction form
    1,429,740.40/2,141,344.32 = 682,311.28/x
  3. Step 3: Cross multiply
    1,429,740.40x = 2,141,344.32 × 682,311.28
  4. Step 4: Simplify right side
    1,429,740.40x = 1,461,063,383,899.93
  5. Step 5: Solve for x
    x = 1,461,063,383,899.93/1,429,740.40
  6. Step 6: Final answer
    x = 1,021,908.16

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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.