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Finding the Fourth Proportional to 587,851.32, 811,231.02 and 319,579.32

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Solution

The fourth proportional to 587,851.32, 811,231.02 and 319,579.32 is: 441,017.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,851.32 : 811,231.02 = 319,579.32 : x
  2. Step 2: Convert to fraction form
    587,851.32/811,231.02 = 319,579.32/x
  3. Step 3: Cross multiply
    587,851.32x = 811,231.02 × 319,579.32
  4. Step 4: Simplify right side
    587,851.32x = 259,252,657,734.51
  5. Step 5: Solve for x
    x = 259,252,657,734.51/587,851.32
  6. Step 6: Final answer
    x = 441,017.39

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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.