Home / 718,170.90-1,077,455.61-313,398.42

Finding the Fourth Proportional to 718,170.90, 1,077,455.61 and 313,398.42

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Solution

The fourth proportional to 718,170.90, 1,077,455.61 and 313,398.42 is: 470,184.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,170.90 : 1,077,455.61 = 313,398.42 : x
  2. Step 2: Convert to fraction form
    718,170.90/1,077,455.61 = 313,398.42/x
  3. Step 3: Cross multiply
    718,170.90x = 1,077,455.61 × 313,398.42
  4. Step 4: Simplify right side
    718,170.90x = 337,672,885,794.14
  5. Step 5: Solve for x
    x = 337,672,885,794.14/718,170.90
  6. Step 6: Final answer
    x = 470,184.58

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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.