Home / 939,783.68-1,296,913.92-510,068.96

Finding the Fourth Proportional to 939,783.68, 1,296,913.92 and 510,068.96

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Solution

The fourth proportional to 939,783.68, 1,296,913.92 and 510,068.96 is: 703,901.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,783.68 : 1,296,913.92 = 510,068.96 : x
  2. Step 2: Convert to fraction form
    939,783.68/1,296,913.92 = 510,068.96/x
  3. Step 3: Cross multiply
    939,783.68x = 1,296,913.92 × 510,068.96
  4. Step 4: Simplify right side
    939,783.68x = 661,515,534,383.92
  5. Step 5: Solve for x
    x = 661,515,534,383.92/939,783.68
  6. Step 6: Final answer
    x = 703,901.92

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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.