Home / 1,243,814.79-1,865,732.63-345,326.59

Finding the Fourth Proportional to 1,243,814.79, 1,865,732.63 and 345,326.59

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Solution

The fourth proportional to 1,243,814.79, 1,865,732.63 and 345,326.59 is: 517,992.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,814.79 : 1,865,732.63 = 345,326.59 : x
  2. Step 2: Convert to fraction form
    1,243,814.79/1,865,732.63 = 345,326.59/x
  3. Step 3: Cross multiply
    1,243,814.79x = 1,865,732.63 × 345,326.59
  4. Step 4: Simplify right side
    1,243,814.79x = 644,287,085,243.00
  5. Step 5: Solve for x
    x = 644,287,085,243.00/1,243,814.79
  6. Step 6: Final answer
    x = 517,992.78

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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.