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Finding the Fourth Proportional to 526,050.40, 788,492.40 and 289,562.80

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Solution

The fourth proportional to 526,050.40, 788,492.40 and 289,562.80 is: 434,023.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,050.40 : 788,492.40 = 289,562.80 : x
  2. Step 2: Convert to fraction form
    526,050.40/788,492.40 = 289,562.80/x
  3. Step 3: Cross multiply
    526,050.40x = 788,492.40 × 289,562.80
  4. Step 4: Simplify right side
    526,050.40x = 228,318,067,122.72
  5. Step 5: Solve for x
    x = 228,318,067,122.72/526,050.40
  6. Step 6: Final answer
    x = 434,023.18

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1.5x scale

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.