Home / 1,243,403.76-1,865,105.54-344,845.48

Finding the Fourth Proportional to 1,243,403.76, 1,865,105.54 and 344,845.48

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Solution

The fourth proportional to 1,243,403.76, 1,865,105.54 and 344,845.48 is: 517,268.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,403.76 : 1,865,105.54 = 344,845.48 : x
  2. Step 2: Convert to fraction form
    1,243,403.76/1,865,105.54 = 344,845.48/x
  3. Step 3: Cross multiply
    1,243,403.76x = 1,865,105.54 × 344,845.48
  4. Step 4: Simplify right side
    1,243,403.76x = 643,173,218,992.61
  5. Step 5: Solve for x
    x = 643,173,218,992.61/1,243,403.76
  6. Step 6: Final answer
    x = 517,268.20

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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.