Home / 1,926,406.40-2,890,473.60-665,139.20

Finding the Fourth Proportional to 1,926,406.40, 2,890,473.60 and 665,139.20

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Solution

The fourth proportional to 1,926,406.40, 2,890,473.60 and 665,139.20 is: 998,007.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926,406.40 : 2,890,473.60 = 665,139.20 : x
  2. Step 2: Convert to fraction form
    1,926,406.40/2,890,473.60 = 665,139.20/x
  3. Step 3: Cross multiply
    1,926,406.40x = 2,890,473.60 × 665,139.20
  4. Step 4: Simplify right side
    1,926,406.40x = 1,922,567,297,925.12
  5. Step 5: Solve for x
    x = 1,922,567,297,925.12/1,926,406.40
  6. Step 6: Final answer
    x = 998,007.12

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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.