Home / 988,393.05-1,482,027.80-389,029.32

Finding the Fourth Proportional to 988,393.05, 1,482,027.80 and 389,029.32

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Solution

The fourth proportional to 988,393.05, 1,482,027.80 and 389,029.32 is: 583,322.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,393.05 : 1,482,027.80 = 389,029.32 : x
  2. Step 2: Convert to fraction form
    988,393.05/1,482,027.80 = 389,029.32/x
  3. Step 3: Cross multiply
    988,393.05x = 1,482,027.80 × 389,029.32
  4. Step 4: Simplify right side
    988,393.05x = 576,552,265,309.95
  5. Step 5: Solve for x
    x = 576,552,265,309.95/988,393.05
  6. Step 6: Final answer
    x = 583,322.86

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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.