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Finding the Fourth Proportional to 526,031.80, 788,529.30 and 259,833.40

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Solution

The fourth proportional to 526,031.80, 788,529.30 and 259,833.40 is: 389,494.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,031.80 : 788,529.30 = 259,833.40 : x
  2. Step 2: Convert to fraction form
    526,031.80/788,529.30 = 259,833.40/x
  3. Step 3: Cross multiply
    526,031.80x = 788,529.30 × 259,833.40
  4. Step 4: Simplify right side
    526,031.80x = 204,886,249,018.62
  5. Step 5: Solve for x
    x = 204,886,249,018.62/526,031.80
  6. Step 6: Final answer
    x = 389,494.04

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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.