Home / 687,940.83-949,326.41-382,036.64

Finding the Fourth Proportional to 687,940.83, 949,326.41 and 382,036.64

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Solution

The fourth proportional to 687,940.83, 949,326.41 and 382,036.64 is: 527,192.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,940.83 : 949,326.41 = 382,036.64 : x
  2. Step 2: Convert to fraction form
    687,940.83/949,326.41 = 382,036.64/x
  3. Step 3: Cross multiply
    687,940.83x = 949,326.41 × 382,036.64
  4. Step 4: Simplify right side
    687,940.83x = 362,677,468,148.12
  5. Step 5: Solve for x
    x = 362,677,468,148.12/687,940.83
  6. Step 6: Final answer
    x = 527,192.82

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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.