Home / 1,177,434.78-1,766,415.54-429,480.78

Finding the Fourth Proportional to 1,177,434.78, 1,766,415.54 and 429,480.78

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Solution

The fourth proportional to 1,177,434.78, 1,766,415.54 and 429,480.78 is: 644,317.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,434.78 : 1,766,415.54 = 429,480.78 : x
  2. Step 2: Convert to fraction form
    1,177,434.78/1,766,415.54 = 429,480.78/x
  3. Step 3: Cross multiply
    1,177,434.78x = 1,766,415.54 × 429,480.78
  4. Step 4: Simplify right side
    1,177,434.78x = 758,641,523,923.32
  5. Step 5: Solve for x
    x = 758,641,523,923.32/1,177,434.78
  6. Step 6: Final answer
    x = 644,317.24

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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.