Home / 812,136.99-1,219,403.04-453,009.51

Finding the Fourth Proportional to 812,136.99, 1,219,403.04 and 453,009.51

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Solution

The fourth proportional to 812,136.99, 1,219,403.04 and 453,009.51 is: 680,182.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,136.99 : 1,219,403.04 = 453,009.51 : x
  2. Step 2: Convert to fraction form
    812,136.99/1,219,403.04 = 453,009.51/x
  3. Step 3: Cross multiply
    812,136.99x = 1,219,403.04 × 453,009.51
  4. Step 4: Simplify right side
    812,136.99x = 552,401,173,642.91
  5. Step 5: Solve for x
    x = 552,401,173,642.91/812,136.99
  6. Step 6: Final answer
    x = 680,182.26

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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.