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Finding the Fourth Proportional to 526,854.88, 726,576.72 and 352,120

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Solution

The fourth proportional to 526,854.88, 726,576.72 and 352,120 is: 485,602.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,854.88 : 726,576.72 = 352,120 : x
  2. Step 2: Convert to fraction form
    526,854.88/726,576.72 = 352,120/x
  3. Step 3: Cross multiply
    526,854.88x = 726,576.72 × 352,120
  4. Step 4: Simplify right side
    526,854.88x = 255,842,194,646.40
  5. Step 5: Solve for x
    x = 255,842,194,646.40/526,854.88
  6. Step 6: Final answer
    x = 485,602.78

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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.