Home / 1,289,310.57-1,779,296.61-773,148.51

Finding the Fourth Proportional to 1,289,310.57, 1,779,296.61 and 773,148.51

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Solution

The fourth proportional to 1,289,310.57, 1,779,296.61 and 773,148.51 is: 1,066,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,310.57 : 1,779,296.61 = 773,148.51 : x
  2. Step 2: Convert to fraction form
    1,289,310.57/1,779,296.61 = 773,148.51/x
  3. Step 3: Cross multiply
    1,289,310.57x = 1,779,296.61 × 773,148.51
  4. Step 4: Simplify right side
    1,289,310.57x = 1,375,660,522,869.55
  5. Step 5: Solve for x
    x = 1,375,660,522,869.55/1,289,310.57
  6. Step 6: Final answer
    x = 1,066,973.74

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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.