Home / 1,312,309.82-1,810,987.58-708,697.82

Finding the Fourth Proportional to 1,312,309.82, 1,810,987.58 and 708,697.82

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Solution

The fourth proportional to 1,312,309.82, 1,810,987.58 and 708,697.82 is: 978,003.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,309.82 : 1,810,987.58 = 708,697.82 : x
  2. Step 2: Convert to fraction form
    1,312,309.82/1,810,987.58 = 708,697.82/x
  3. Step 3: Cross multiply
    1,312,309.82x = 1,810,987.58 × 708,697.82
  4. Step 4: Simplify right side
    1,312,309.82x = 1,283,442,956,292.29
  5. Step 5: Solve for x
    x = 1,283,442,956,292.29/1,312,309.82
  6. Step 6: Final answer
    x = 978,003.01

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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.