Home / 1,177,433.80-1,766,414-429,479.80

Finding the Fourth Proportional to 1,177,433.80, 1,766,414 and 429,479.80

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Solution

The fourth proportional to 1,177,433.80, 1,766,414 and 429,479.80 is: 644,315.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,433.80 : 1,766,414 = 429,479.80 : x
  2. Step 2: Convert to fraction form
    1,177,433.80/1,766,414 = 429,479.80/x
  3. Step 3: Cross multiply
    1,177,433.80x = 1,766,414 × 429,479.80
  4. Step 4: Simplify right side
    1,177,433.80x = 758,639,131,437.20
  5. Step 5: Solve for x
    x = 758,639,131,437.20/1,177,433.80
  6. Step 6: Final answer
    x = 644,315.74

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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.