Home / 679,958.70-1,019,938.05-456,009.90

Finding the Fourth Proportional to 679,958.70, 1,019,938.05 and 456,009.90

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Solution

The fourth proportional to 679,958.70, 1,019,938.05 and 456,009.90 is: 684,014.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,958.70 : 1,019,938.05 = 456,009.90 : x
  2. Step 2: Convert to fraction form
    679,958.70/1,019,938.05 = 456,009.90/x
  3. Step 3: Cross multiply
    679,958.70x = 1,019,938.05 × 456,009.90
  4. Step 4: Simplify right side
    679,958.70x = 465,101,848,186.70
  5. Step 5: Solve for x
    x = 465,101,848,186.70/679,958.70
  6. Step 6: Final answer
    x = 684,014.85

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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.