Home / 1,288,294.60-1,928,505.30-1,004,859.40

Finding the Fourth Proportional to 1,288,294.60, 1,928,505.30 and 1,004,859.40

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Solution

The fourth proportional to 1,288,294.60, 1,928,505.30 and 1,004,859.40 is: 1,504,218.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,294.60 : 1,928,505.30 = 1,004,859.40 : x
  2. Step 2: Convert to fraction form
    1,288,294.60/1,928,505.30 = 1,004,859.40/x
  3. Step 3: Cross multiply
    1,288,294.60x = 1,928,505.30 × 1,004,859.40
  4. Step 4: Simplify right side
    1,288,294.60x = 1,937,876,678,654.82
  5. Step 5: Solve for x
    x = 1,937,876,678,654.82/1,288,294.60
  6. Step 6: Final answer
    x = 1,504,218.58

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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.