Home / 1,238,157.36-1,708,028.28-808,688.88

Finding the Fourth Proportional to 1,238,157.36, 1,708,028.28 and 808,688.88

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Solution

The fourth proportional to 1,238,157.36, 1,708,028.28 and 808,688.88 is: 1,115,579.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,157.36 : 1,708,028.28 = 808,688.88 : x
  2. Step 2: Convert to fraction form
    1,238,157.36/1,708,028.28 = 808,688.88/x
  3. Step 3: Cross multiply
    1,238,157.36x = 1,708,028.28 × 808,688.88
  4. Step 4: Simplify right side
    1,238,157.36x = 1,381,263,476,761.53
  5. Step 5: Solve for x
    x = 1,381,263,476,761.53/1,238,157.36
  6. Step 6: Final answer
    x = 1,115,579.91

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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.