Home / 509,015.01-763,396.41-172,048.23

Finding the Fourth Proportional to 509,015.01, 763,396.41 and 172,048.23

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Solution

The fourth proportional to 509,015.01, 763,396.41 and 172,048.23 is: 258,029.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,015.01 : 763,396.41 = 172,048.23 : x
  2. Step 2: Convert to fraction form
    509,015.01/763,396.41 = 172,048.23/x
  3. Step 3: Cross multiply
    509,015.01x = 763,396.41 × 172,048.23
  4. Step 4: Simplify right side
    509,015.01x = 131,341,001,128.85
  5. Step 5: Solve for x
    x = 131,341,001,128.85/509,015.01
  6. Step 6: Final answer
    x = 258,029.72

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1.5x scale

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.