Home / 679,654.16-1,019,603.82-280,072.52

Finding the Fourth Proportional to 679,654.16, 1,019,603.82 and 280,072.52

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Solution

The fourth proportional to 679,654.16, 1,019,603.82 and 280,072.52 is: 420,159.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,654.16 : 1,019,603.82 = 280,072.52 : x
  2. Step 2: Convert to fraction form
    679,654.16/1,019,603.82 = 280,072.52/x
  3. Step 3: Cross multiply
    679,654.16x = 1,019,603.82 × 280,072.52
  4. Step 4: Simplify right side
    679,654.16x = 285,563,011,269.03
  5. Step 5: Solve for x
    x = 285,563,011,269.03/679,654.16
  6. Step 6: Final answer
    x = 420,159.29

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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.