Home / 1,289,455.66-1,779,488.83-708,668.22

Finding the Fourth Proportional to 1,289,455.66, 1,779,488.83 and 708,668.22

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Solution

The fourth proportional to 1,289,455.66, 1,779,488.83 and 708,668.22 is: 977,984.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,455.66 : 1,779,488.83 = 708,668.22 : x
  2. Step 2: Convert to fraction form
    1,289,455.66/1,779,488.83 = 708,668.22/x
  3. Step 3: Cross multiply
    1,289,455.66x = 1,779,488.83 × 708,668.22
  4. Step 4: Simplify right side
    1,289,455.66x = 1,261,067,189,224.90
  5. Step 5: Solve for x
    x = 1,261,067,189,224.90/1,289,455.66
  6. Step 6: Final answer
    x = 977,984.15

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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.