Home / 939,771.78-1,296,886.34-510,051.92

Finding the Fourth Proportional to 939,771.78, 1,296,886.34 and 510,051.92

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Solution

The fourth proportional to 939,771.78, 1,296,886.34 and 510,051.92 is: 703,872.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,771.78 : 1,296,886.34 = 510,051.92 : x
  2. Step 2: Convert to fraction form
    939,771.78/1,296,886.34 = 510,051.92/x
  3. Step 3: Cross multiply
    939,771.78x = 1,296,886.34 × 510,051.92
  4. Step 4: Simplify right side
    939,771.78x = 661,479,358,704.08
  5. Step 5: Solve for x
    x = 661,479,358,704.08/939,771.78
  6. Step 6: Final answer
    x = 703,872.34

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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.