Home / 637,830.40-956,860.80-263,891.20

Finding the Fourth Proportional to 637,830.40, 956,860.80 and 263,891.20

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Solution

The fourth proportional to 637,830.40, 956,860.80 and 263,891.20 is: 395,884.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,830.40 : 956,860.80 = 263,891.20 : x
  2. Step 2: Convert to fraction form
    637,830.40/956,860.80 = 263,891.20/x
  3. Step 3: Cross multiply
    637,830.40x = 956,860.80 × 263,891.20
  4. Step 4: Simplify right side
    637,830.40x = 252,507,144,744.96
  5. Step 5: Solve for x
    x = 252,507,144,744.96/637,830.40
  6. Step 6: Final answer
    x = 395,884.46

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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.