Home / 939,142.44-1,408,661.82-686,681.64

Finding the Fourth Proportional to 939,142.44, 1,408,661.82 and 686,681.64

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Solution

The fourth proportional to 939,142.44, 1,408,661.82 and 686,681.64 is: 1,029,984.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,142.44 : 1,408,661.82 = 686,681.64 : x
  2. Step 2: Convert to fraction form
    939,142.44/1,408,661.82 = 686,681.64/x
  3. Step 3: Cross multiply
    939,142.44x = 1,408,661.82 × 686,681.64
  4. Step 4: Simplify right side
    939,142.44x = 967,302,208,762.99
  5. Step 5: Solve for x
    x = 967,302,208,762.99/939,142.44
  6. Step 6: Final answer
    x = 1,029,984.56

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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.