Home / 982,145.45-1,355,361.05-552,425.87

Finding the Fourth Proportional to 982,145.45, 1,355,361.05 and 552,425.87

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Solution

The fourth proportional to 982,145.45, 1,355,361.05 and 552,425.87 is: 762,347.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,145.45 : 1,355,361.05 = 552,425.87 : x
  2. Step 2: Convert to fraction form
    982,145.45/1,355,361.05 = 552,425.87/x
  3. Step 3: Cross multiply
    982,145.45x = 1,355,361.05 × 552,425.87
  4. Step 4: Simplify right side
    982,145.45x = 748,736,511,979.83
  5. Step 5: Solve for x
    x = 748,736,511,979.83/982,145.45
  6. Step 6: Final answer
    x = 762,347.89

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1.5x scale

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.