Home / 939,655.69-1,296,725.76-509,935.91

Finding the Fourth Proportional to 939,655.69, 1,296,725.76 and 509,935.91

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Solution

The fourth proportional to 939,655.69, 1,296,725.76 and 509,935.91 is: 703,712.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,655.69 : 1,296,725.76 = 509,935.91 : x
  2. Step 2: Convert to fraction form
    939,655.69/1,296,725.76 = 509,935.91/x
  3. Step 3: Cross multiply
    939,655.69x = 1,296,725.76 × 509,935.91
  4. Step 4: Simplify right side
    939,655.69x = 661,247,023,962.41
  5. Step 5: Solve for x
    x = 661,247,023,962.41/939,655.69
  6. Step 6: Final answer
    x = 703,712.04

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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.