Home / 1,220,022.32-1,683,630.96-676,193.22

Finding the Fourth Proportional to 1,220,022.32, 1,683,630.96 and 676,193.22

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Solution

The fourth proportional to 1,220,022.32, 1,683,630.96 and 676,193.22 is: 933,146.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,022.32 : 1,683,630.96 = 676,193.22 : x
  2. Step 2: Convert to fraction form
    1,220,022.32/1,683,630.96 = 676,193.22/x
  3. Step 3: Cross multiply
    1,220,022.32x = 1,683,630.96 × 676,193.22
  4. Step 4: Simplify right side
    1,220,022.32x = 1,138,459,840,134.09
  5. Step 5: Solve for x
    x = 1,138,459,840,134.09/1,220,022.32
  6. Step 6: Final answer
    x = 933,146.73

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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.