Home / 1,375,918.60-2,064,072.30-429,190.60

Finding the Fourth Proportional to 1,375,918.60, 2,064,072.30 and 429,190.60

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Solution

The fourth proportional to 1,375,918.60, 2,064,072.30 and 429,190.60 is: 643,846.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,918.60 : 2,064,072.30 = 429,190.60 : x
  2. Step 2: Convert to fraction form
    1,375,918.60/2,064,072.30 = 429,190.60/x
  3. Step 3: Cross multiply
    1,375,918.60x = 2,064,072.30 × 429,190.60
  4. Step 4: Simplify right side
    1,375,918.60x = 885,880,428,880.38
  5. Step 5: Solve for x
    x = 885,880,428,880.38/1,375,918.60
  6. Step 6: Final answer
    x = 643,846.54

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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.