Home / 1,926,412.40-2,890,482.60-665,145.20

Finding the Fourth Proportional to 1,926,412.40, 2,890,482.60 and 665,145.20

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Solution

The fourth proportional to 1,926,412.40, 2,890,482.60 and 665,145.20 is: 998,016.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926,412.40 : 2,890,482.60 = 665,145.20 : x
  2. Step 2: Convert to fraction form
    1,926,412.40/2,890,482.60 = 665,145.20/x
  3. Step 3: Cross multiply
    1,926,412.40x = 2,890,482.60 × 665,145.20
  4. Step 4: Simplify right side
    1,926,412.40x = 1,922,590,627,073.52
  5. Step 5: Solve for x
    x = 1,922,590,627,073.52/1,926,412.40
  6. Step 6: Final answer
    x = 998,016.12

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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.