Home / 1,243,811.88-1,865,728.27-345,323.69

Finding the Fourth Proportional to 1,243,811.88, 1,865,728.27 and 345,323.69

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Solution

The fourth proportional to 1,243,811.88, 1,865,728.27 and 345,323.69 is: 517,988.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,811.88 : 1,865,728.27 = 345,323.69 : x
  2. Step 2: Convert to fraction form
    1,243,811.88/1,865,728.27 = 345,323.69/x
  3. Step 3: Cross multiply
    1,243,811.88x = 1,865,728.27 × 345,323.69
  4. Step 4: Simplify right side
    1,243,811.88x = 644,280,159,678.46
  5. Step 5: Solve for x
    x = 644,280,159,678.46/1,243,811.88
  6. Step 6: Final answer
    x = 517,988.43

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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.