Home / 987,230.10-1,479,725.67-453,648.57

Finding the Fourth Proportional to 987,230.10, 1,479,725.67 and 453,648.57

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Solution

The fourth proportional to 987,230.10, 1,479,725.67 and 453,648.57 is: 679,958.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,230.10 : 1,479,725.67 = 453,648.57 : x
  2. Step 2: Convert to fraction form
    987,230.10/1,479,725.67 = 453,648.57/x
  3. Step 3: Cross multiply
    987,230.10x = 1,479,725.67 × 453,648.57
  4. Step 4: Simplify right side
    987,230.10x = 671,275,434,187.79
  5. Step 5: Solve for x
    x = 671,275,434,187.79/987,230.10
  6. Step 6: Final answer
    x = 679,958.44

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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.