Home / 988,918.34-1,482,886.78-314,911.80

Finding the Fourth Proportional to 988,918.34, 1,482,886.78 and 314,911.80

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Solution

The fourth proportional to 988,918.34, 1,482,886.78 and 314,911.80 is: 472,211.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,918.34 : 1,482,886.78 = 314,911.80 : x
  2. Step 2: Convert to fraction form
    988,918.34/1,482,886.78 = 314,911.80/x
  3. Step 3: Cross multiply
    988,918.34x = 1,482,886.78 × 314,911.80
  4. Step 4: Simplify right side
    988,918.34x = 466,978,544,298.73
  5. Step 5: Solve for x
    x = 466,978,544,298.73/988,918.34
  6. Step 6: Final answer
    x = 472,211.43

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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.