Home / 939,830.21-1,296,930.92-510,101.13

Finding the Fourth Proportional to 939,830.21, 1,296,930.92 and 510,101.13

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Solution

The fourth proportional to 939,830.21, 1,296,930.92 and 510,101.13 is: 703,920.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,830.21 : 1,296,930.92 = 510,101.13 : x
  2. Step 2: Convert to fraction form
    939,830.21/1,296,930.92 = 510,101.13/x
  3. Step 3: Cross multiply
    939,830.21x = 1,296,930.92 × 510,101.13
  4. Step 4: Simplify right side
    939,830.21x = 661,565,925,273.43
  5. Step 5: Solve for x
    x = 661,565,925,273.43/939,830.21
  6. Step 6: Final answer
    x = 703,920.69

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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.