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Finding the Fourth Proportional to 526,662.40, 788,657.10 and 289,737.40

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Solution

The fourth proportional to 526,662.40, 788,657.10 and 289,737.40 is: 433,870.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,662.40 : 788,657.10 = 289,737.40 : x
  2. Step 2: Convert to fraction form
    526,662.40/788,657.10 = 289,737.40/x
  3. Step 3: Cross multiply
    526,662.40x = 788,657.10 × 289,737.40
  4. Step 4: Simplify right side
    526,662.40x = 228,503,457,645.54
  5. Step 5: Solve for x
    x = 228,503,457,645.54/526,662.40
  6. Step 6: Final answer
    x = 433,870.84

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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.