Home / 1,428,266.10-1,971,068.79-855,196.74

Finding the Fourth Proportional to 1,428,266.10, 1,971,068.79 and 855,196.74

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Solution

The fourth proportional to 1,428,266.10, 1,971,068.79 and 855,196.74 is: 1,180,208.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,266.10 : 1,971,068.79 = 855,196.74 : x
  2. Step 2: Convert to fraction form
    1,428,266.10/1,971,068.79 = 855,196.74/x
  3. Step 3: Cross multiply
    1,428,266.10x = 1,971,068.79 × 855,196.74
  4. Step 4: Simplify right side
    1,428,266.10x = 1,685,651,603,523.74
  5. Step 5: Solve for x
    x = 1,685,651,603,523.74/1,428,266.10
  6. Step 6: Final answer
    x = 1,180,208.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.