Home / 939,634.86-1,296,699.48-509,914.74

Finding the Fourth Proportional to 939,634.86, 1,296,699.48 and 509,914.74

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Solution

The fourth proportional to 939,634.86, 1,296,699.48 and 509,914.74 is: 703,684.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,634.86 : 1,296,699.48 = 509,914.74 : x
  2. Step 2: Convert to fraction form
    939,634.86/1,296,699.48 = 509,914.74/x
  3. Step 3: Cross multiply
    939,634.86x = 1,296,699.48 × 509,914.74
  4. Step 4: Simplify right side
    939,634.86x = 661,206,178,202.34
  5. Step 5: Solve for x
    x = 661,206,178,202.34/939,634.86
  6. Step 6: Final answer
    x = 703,684.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.