Home / 777,780.20-1,166,475.90-297,903.80

Finding the Fourth Proportional to 777,780.20, 1,166,475.90 and 297,903.80

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Solution

The fourth proportional to 777,780.20, 1,166,475.90 and 297,903.80 is: 446,781.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,780.20 : 1,166,475.90 = 297,903.80 : x
  2. Step 2: Convert to fraction form
    777,780.20/1,166,475.90 = 297,903.80/x
  3. Step 3: Cross multiply
    777,780.20x = 1,166,475.90 × 297,903.80
  4. Step 4: Simplify right side
    777,780.20x = 347,497,603,218.42
  5. Step 5: Solve for x
    x = 347,497,603,218.42/777,780.20
  6. Step 6: Final answer
    x = 446,781.24

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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.