Home / 1,282,304.12-1,920,928.53-1,042,688.48

Finding the Fourth Proportional to 1,282,304.12, 1,920,928.53 and 1,042,688.48

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Solution

The fourth proportional to 1,282,304.12, 1,920,928.53 and 1,042,688.48 is: 1,561,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,304.12 : 1,920,928.53 = 1,042,688.48 : x
  2. Step 2: Convert to fraction form
    1,282,304.12/1,920,928.53 = 1,042,688.48/x
  3. Step 3: Cross multiply
    1,282,304.12x = 1,920,928.53 × 1,042,688.48
  4. Step 4: Simplify right side
    1,282,304.12x = 2,002,930,049,134.33
  5. Step 5: Solve for x
    x = 2,002,930,049,134.33/1,282,304.12
  6. Step 6: Final answer
    x = 1,561,977.40

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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.