Home / 939,866.86-1,296,981.58-510,137.75

Finding the Fourth Proportional to 939,866.86, 1,296,981.58 and 510,137.75

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Solution

The fourth proportional to 939,866.86, 1,296,981.58 and 510,137.75 is: 703,971.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,866.86 : 1,296,981.58 = 510,137.75 : x
  2. Step 2: Convert to fraction form
    939,866.86/1,296,981.58 = 510,137.75/x
  3. Step 3: Cross multiply
    939,866.86x = 1,296,981.58 × 510,137.75
  4. Step 4: Simplify right side
    939,866.86x = 661,639,265,012.65
  5. Step 5: Solve for x
    x = 661,639,265,012.65/939,866.86
  6. Step 6: Final answer
    x = 703,971.27

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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.