Home / 679,655.16-1,019,605.32-280,073.52

Finding the Fourth Proportional to 679,655.16, 1,019,605.32 and 280,073.52

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Solution

The fourth proportional to 679,655.16, 1,019,605.32 and 280,073.52 is: 420,160.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,655.16 : 1,019,605.32 = 280,073.52 : x
  2. Step 2: Convert to fraction form
    679,655.16/1,019,605.32 = 280,073.52/x
  3. Step 3: Cross multiply
    679,655.16x = 1,019,605.32 × 280,073.52
  4. Step 4: Simplify right side
    679,655.16x = 285,564,450,983.13
  5. Step 5: Solve for x
    x = 285,564,450,983.13/679,655.16
  6. Step 6: Final answer
    x = 420,160.79

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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.