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Finding the Fourth Proportional to 388,909.52, 585,465.22 and 349,804.88

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Solution

The fourth proportional to 388,909.52, 585,465.22 and 349,804.88 is: 526,597.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,909.52 : 585,465.22 = 349,804.88 : x
  2. Step 2: Convert to fraction form
    388,909.52/585,465.22 = 349,804.88/x
  3. Step 3: Cross multiply
    388,909.52x = 585,465.22 × 349,804.88
  4. Step 4: Simplify right side
    388,909.52x = 204,798,591,026.27
  5. Step 5: Solve for x
    x = 204,798,591,026.27/388,909.52
  6. Step 6: Final answer
    x = 526,597.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.