Home / 1,105,942.87-1,656,257.10-631,188.91

Finding the Fourth Proportional to 1,105,942.87, 1,656,257.10 and 631,188.91

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Solution

The fourth proportional to 1,105,942.87, 1,656,257.10 and 631,188.91 is: 945,266.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,942.87 : 1,656,257.10 = 631,188.91 : x
  2. Step 2: Convert to fraction form
    1,105,942.87/1,656,257.10 = 631,188.91/x
  3. Step 3: Cross multiply
    1,105,942.87x = 1,656,257.10 × 631,188.91
  4. Step 4: Simplify right side
    1,105,942.87x = 1,045,411,113,628.76
  5. Step 5: Solve for x
    x = 1,045,411,113,628.76/1,105,942.87
  6. Step 6: Final answer
    x = 945,266.83

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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.