Home / 1,177,390.38-1,766,348.81-429,436.38

Finding the Fourth Proportional to 1,177,390.38, 1,766,348.81 and 429,436.38

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Solution

The fourth proportional to 1,177,390.38, 1,766,348.81 and 429,436.38 is: 644,250.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,390.38 : 1,766,348.81 = 429,436.38 : x
  2. Step 2: Convert to fraction form
    1,177,390.38/1,766,348.81 = 429,436.38/x
  3. Step 3: Cross multiply
    1,177,390.38x = 1,766,348.81 × 429,436.38
  4. Step 4: Simplify right side
    1,177,390.38x = 758,534,438,783.71
  5. Step 5: Solve for x
    x = 758,534,438,783.71/1,177,390.38
  6. Step 6: Final answer
    x = 644,250.58

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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.