Home / 547,272.90-821,565.45-307,577.70

Finding the Fourth Proportional to 547,272.90, 821,565.45 and 307,577.70

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Solution

The fourth proportional to 547,272.90, 821,565.45 and 307,577.70 is: 461,735.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,272.90 : 821,565.45 = 307,577.70 : x
  2. Step 2: Convert to fraction form
    547,272.90/821,565.45 = 307,577.70/x
  3. Step 3: Cross multiply
    547,272.90x = 821,565.45 × 307,577.70
  4. Step 4: Simplify right side
    547,272.90x = 252,695,211,510.47
  5. Step 5: Solve for x
    x = 252,695,211,510.47/547,272.90
  6. Step 6: Final answer
    x = 461,735.29

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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.