Home / 679,706.16-1,019,682.36-280,124.52

Finding the Fourth Proportional to 679,706.16, 1,019,682.36 and 280,124.52

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Solution

The fourth proportional to 679,706.16, 1,019,682.36 and 280,124.52 is: 420,237.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,706.16 : 1,019,682.36 = 280,124.52 : x
  2. Step 2: Convert to fraction form
    679,706.16/1,019,682.36 = 280,124.52/x
  3. Step 3: Cross multiply
    679,706.16x = 1,019,682.36 × 280,124.52
  4. Step 4: Simplify right side
    679,706.16x = 285,638,031,647.47
  5. Step 5: Solve for x
    x = 285,638,031,647.47/679,706.16
  6. Step 6: Final answer
    x = 420,237.52

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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.