Home / 1,027,404.95-1,540,858.14-428,039.10

Finding the Fourth Proportional to 1,027,404.95, 1,540,858.14 and 428,039.10

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Solution

The fourth proportional to 1,027,404.95, 1,540,858.14 and 428,039.10 is: 641,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027,404.95 : 1,540,858.14 = 428,039.10 : x
  2. Step 2: Convert to fraction form
    1,027,404.95/1,540,858.14 = 428,039.10/x
  3. Step 3: Cross multiply
    1,027,404.95x = 1,540,858.14 × 428,039.10
  4. Step 4: Simplify right side
    1,027,404.95x = 659,547,531,473.27
  5. Step 5: Solve for x
    x = 659,547,531,473.27/1,027,404.95
  6. Step 6: Final answer
    x = 641,954.80

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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.