Home / 1,281,288.09-1,768,214.47-708,365.16

Finding the Fourth Proportional to 1,281,288.09, 1,768,214.47 and 708,365.16

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Solution

The fourth proportional to 1,281,288.09, 1,768,214.47 and 708,365.16 is: 977,564.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,288.09 : 1,768,214.47 = 708,365.16 : x
  2. Step 2: Convert to fraction form
    1,281,288.09/1,768,214.47 = 708,365.16/x
  3. Step 3: Cross multiply
    1,281,288.09x = 1,768,214.47 × 708,365.16
  4. Step 4: Simplify right side
    1,281,288.09x = 1,252,541,522,414.04
  5. Step 5: Solve for x
    x = 1,252,541,522,414.04/1,281,288.09
  6. Step 6: Final answer
    x = 977,564.33

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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.