Home / 987,787.95-1,481,681.55-277,815.78

Finding the Fourth Proportional to 987,787.95, 1,481,681.55 and 277,815.78

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Solution

The fourth proportional to 987,787.95, 1,481,681.55 and 277,815.78 is: 416,723.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,787.95 : 1,481,681.55 = 277,815.78 : x
  2. Step 2: Convert to fraction form
    987,787.95/1,481,681.55 = 277,815.78/x
  3. Step 3: Cross multiply
    987,787.95x = 1,481,681.55 × 277,815.78
  4. Step 4: Simplify right side
    987,787.95x = 411,634,515,524.86
  5. Step 5: Solve for x
    x = 411,634,515,524.86/987,787.95
  6. Step 6: Final answer
    x = 416,723.56

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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.