Home / 421,985.72-632,541.18-263,851.04

Finding the Fourth Proportional to 421,985.72, 632,541.18 and 263,851.04

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Solution

The fourth proportional to 421,985.72, 632,541.18 and 263,851.04 is: 395,503.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,985.72 : 632,541.18 = 263,851.04 : x
  2. Step 2: Convert to fraction form
    421,985.72/632,541.18 = 263,851.04/x
  3. Step 3: Cross multiply
    421,985.72x = 632,541.18 × 263,851.04
  4. Step 4: Simplify right side
    421,985.72x = 166,896,648,185.83
  5. Step 5: Solve for x
    x = 166,896,648,185.83/421,985.72
  6. Step 6: Final answer
    x = 395,503.07

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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.