Home / 1,243,632.48-1,865,448.72-345,074.38

Finding the Fourth Proportional to 1,243,632.48, 1,865,448.72 and 345,074.38

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Solution

The fourth proportional to 1,243,632.48, 1,865,448.72 and 345,074.38 is: 517,611.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,632.48 : 1,865,448.72 = 345,074.38 : x
  2. Step 2: Convert to fraction form
    1,243,632.48/1,865,448.72 = 345,074.38/x
  3. Step 3: Cross multiply
    1,243,632.48x = 1,865,448.72 × 345,074.38
  4. Step 4: Simplify right side
    1,243,632.48x = 643,718,560,475.79
  5. Step 5: Solve for x
    x = 643,718,560,475.79/1,243,632.48
  6. Step 6: Final answer
    x = 517,611.57

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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.