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Finding the Fourth Proportional to 526,888.20, 788,489.10 and 482,651.40

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Solution

The fourth proportional to 526,888.20, 788,489.10 and 482,651.40 is: 722,288.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,888.20 : 788,489.10 = 482,651.40 : x
  2. Step 2: Convert to fraction form
    526,888.20/788,489.10 = 482,651.40/x
  3. Step 3: Cross multiply
    526,888.20x = 788,489.10 × 482,651.40
  4. Step 4: Simplify right side
    526,888.20x = 380,565,367,999.74
  5. Step 5: Solve for x
    x = 380,565,367,999.74/526,888.20
  6. Step 6: Final answer
    x = 722,288.65

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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.