Home / 987,356.58-1,479,914.88-453,774.78

Finding the Fourth Proportional to 987,356.58, 1,479,914.88 and 453,774.78

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Solution

The fourth proportional to 987,356.58, 1,479,914.88 and 453,774.78 is: 680,147.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,356.58 : 1,479,914.88 = 453,774.78 : x
  2. Step 2: Convert to fraction form
    987,356.58/1,479,914.88 = 453,774.78/x
  3. Step 3: Cross multiply
    987,356.58x = 1,479,914.88 × 453,774.78
  4. Step 4: Simplify right side
    987,356.58x = 671,548,049,090.73
  5. Step 5: Solve for x
    x = 671,548,049,090.73/987,356.58
  6. Step 6: Final answer
    x = 680,147.44

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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.