Home / 939,857.07-1,296,967.86-510,127.95

Finding the Fourth Proportional to 939,857.07, 1,296,967.86 and 510,127.95

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Solution

The fourth proportional to 939,857.07, 1,296,967.86 and 510,127.95 is: 703,957.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,857.07 : 1,296,967.86 = 510,127.95 : x
  2. Step 2: Convert to fraction form
    939,857.07/1,296,967.86 = 510,127.95/x
  3. Step 3: Cross multiply
    939,857.07x = 1,296,967.86 × 510,127.95
  4. Step 4: Simplify right side
    939,857.07x = 661,619,555,637.69
  5. Step 5: Solve for x
    x = 661,619,555,637.69/939,857.07
  6. Step 6: Final answer
    x = 703,957.63

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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.