Home / 1,212,602.40-1,816,935.30-762,517.80

Finding the Fourth Proportional to 1,212,602.40, 1,816,935.30 and 762,517.80

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Solution

The fourth proportional to 1,212,602.40, 1,816,935.30 and 762,517.80 is: 1,142,538.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,602.40 : 1,816,935.30 = 762,517.80 : x
  2. Step 2: Convert to fraction form
    1,212,602.40/1,816,935.30 = 762,517.80/x
  3. Step 3: Cross multiply
    1,212,602.40x = 1,816,935.30 × 762,517.80
  4. Step 4: Simplify right side
    1,212,602.40x = 1,385,445,507,698.34
  5. Step 5: Solve for x
    x = 1,385,445,507,698.34/1,212,602.40
  6. Step 6: Final answer
    x = 1,142,538.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.