Home / 679,718.16-1,019,699.82-280,136.52

Finding the Fourth Proportional to 679,718.16, 1,019,699.82 and 280,136.52

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Solution

The fourth proportional to 679,718.16, 1,019,699.82 and 280,136.52 is: 420,255.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,718.16 : 1,019,699.82 = 280,136.52 : x
  2. Step 2: Convert to fraction form
    679,718.16/1,019,699.82 = 280,136.52/x
  3. Step 3: Cross multiply
    679,718.16x = 1,019,699.82 × 280,136.52
  4. Step 4: Simplify right side
    679,718.16x = 285,655,159,019.43
  5. Step 5: Solve for x
    x = 285,655,159,019.43/679,718.16
  6. Step 6: Final answer
    x = 420,255.30

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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.