Home / 778,416.48-1,167,782.67-329,136.21

Finding the Fourth Proportional to 778,416.48, 1,167,782.67 and 329,136.21

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Solution

The fourth proportional to 778,416.48, 1,167,782.67 and 329,136.21 is: 493,771.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,416.48 : 1,167,782.67 = 329,136.21 : x
  2. Step 2: Convert to fraction form
    778,416.48/1,167,782.67 = 329,136.21/x
  3. Step 3: Cross multiply
    778,416.48x = 1,167,782.67 × 329,136.21
  4. Step 4: Simplify right side
    778,416.48x = 384,359,562,107.48
  5. Step 5: Solve for x
    x = 384,359,562,107.48/778,416.48
  6. Step 6: Final answer
    x = 493,771.10

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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.