Home / 987,226.78-1,479,720.70-453,645.26

Finding the Fourth Proportional to 987,226.78, 1,479,720.70 and 453,645.26

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Solution

The fourth proportional to 987,226.78, 1,479,720.70 and 453,645.26 is: 679,953.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,226.78 : 1,479,720.70 = 453,645.26 : x
  2. Step 2: Convert to fraction form
    987,226.78/1,479,720.70 = 453,645.26/x
  3. Step 3: Cross multiply
    987,226.78x = 1,479,720.70 × 453,645.26
  4. Step 4: Simplify right side
    987,226.78x = 671,268,274,847.34
  5. Step 5: Solve for x
    x = 671,268,274,847.34/987,226.78
  6. Step 6: Final answer
    x = 679,953.47

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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.