Home / 988,592.32-1,481,870.30-389,310.58

Finding the Fourth Proportional to 988,592.32, 1,481,870.30 and 389,310.58

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Solution

The fourth proportional to 988,592.32, 1,481,870.30 and 389,310.58 is: 583,564.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,592.32 : 1,481,870.30 = 389,310.58 : x
  2. Step 2: Convert to fraction form
    988,592.32/1,481,870.30 = 389,310.58/x
  3. Step 3: Cross multiply
    988,592.32x = 1,481,870.30 × 389,310.58
  4. Step 4: Simplify right side
    988,592.32x = 576,907,778,568.42
  5. Step 5: Solve for x
    x = 576,907,778,568.42/988,592.32
  6. Step 6: Final answer
    x = 583,564.90

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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.