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Finding the Fourth Proportional to 526,078.80, 788,599.80 and 259,880.40

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Solution

The fourth proportional to 526,078.80, 788,599.80 and 259,880.40 is: 389,564.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,078.80 : 788,599.80 = 259,880.40 : x
  2. Step 2: Convert to fraction form
    526,078.80/788,599.80 = 259,880.40/x
  3. Step 3: Cross multiply
    526,078.80x = 788,599.80 × 259,880.40
  4. Step 4: Simplify right side
    526,078.80x = 204,941,631,463.92
  5. Step 5: Solve for x
    x = 204,941,631,463.92/526,078.80
  6. Step 6: Final answer
    x = 389,564.51

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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.