Home / 676,789.36-1,015,274.02-316,911.06

Finding the Fourth Proportional to 676,789.36, 1,015,274.02 and 316,911.06

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Solution

The fourth proportional to 676,789.36, 1,015,274.02 and 316,911.06 is: 475,408.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,789.36 : 1,015,274.02 = 316,911.06 : x
  2. Step 2: Convert to fraction form
    676,789.36/1,015,274.02 = 316,911.06/x
  3. Step 3: Cross multiply
    676,789.36x = 1,015,274.02 × 316,911.06
  4. Step 4: Simplify right side
    676,789.36x = 321,751,565,868.66
  5. Step 5: Solve for x
    x = 321,751,565,868.66/676,789.36
  6. Step 6: Final answer
    x = 475,408.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.